Ranking with Echo on Php

Question

My problem is very very basic, however I don't have enough knowledge to fix it. My code:

$query = new WP_Query( array(
    'cat' => '22', 
    'posts_per_page' => -1, 
    'orderby' => 'meta_value',
    'meta_key' => 'my_meta_key',
    'order' => 'DESC',
    'fields' => 'ids'
));

global $post; // current post object

$i = array_search( $post->ID, $query->posts ) + 1;

echo '<div class="ranks">';
echo '<a href="...">Post Ranking: </a>'; 
echo "{$i}th"; 
echo '</div>';

I couldn't manage write codes for {$i}st (1st), {$i}nd (2nd) and {$i}rd (3rd). Will appreciate any help.