Right-aligning text with different font sizes

Question

The desired result should be as follows

What I've tried so far is \raggedleft and tabular with r. But the results are not as desired.

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{helvet}

\begin{document}

\fontfamily{phv}\selectfont

{\raggedleft\fontsize{40}{40}\selectfont Journal\par}
{\raggedleft\fontsize{32}{32}\selectfont 2021\par}
{\raggedleft\fontsize{24}{24}\selectfont Vol. 1\par}
{\raggedleft\fontsize{12}{12}\selectfont Issue 1\par}

\begin{tabular}{r}
{\fontsize{40}{40}\selectfont Journal}\\
{\fontsize{32}{32}\selectfont 2021}\\
{\fontsize{24}{24}\selectfont Vol. 1}\\
{\fontsize{12}{12}\selectfont Issue 1}
\end{tabular}

\end{document}

This is what I get

Answer 1

The digits you are using are designed so that tabular columns of numbers line up, so they all have the same width. To achieve this 1 has a lot of white space within the character box. Tex has no control over that. You could choose a font with proportional digits where each digit has its "natural" width, or as here simply adjust by eye.

\documentclass{article}
\usepackage[T1]{fontenc}
\usepackage{helvet}
\usepackage{microtype}

\begin{document}

\fontfamily{phv}\selectfont

{\raggedleft\fontsize{40}{40}\selectfont Journal\par}
{\raggedleft\fontsize{32}{32}\selectfont 2021\kern-.13em\par}
{\raggedleft\fontsize{24}{24}\selectfont Vol. 1\kern-.1em\par}
{\raggedleft\fontsize{12}{12}\selectfont Issue 1\kern-.01em\par}

\begin{tabular}{r@{\vline}}
{\fontsize{40}{40}\selectfont Journal}\\
{\fontsize{32}{32}\selectfont 2021\kern-.13em}\\
{\fontsize{24}{24}\selectfont Vol. 1\kern-.1em}\\
  {\fontsize{12}{12}\selectfont Issue 1\kern-.01em}\\
\end{tabular}

\end{document}