JSFiddle - React, Tailwind, and code Playground

HTML

<div id="results"></div>

JavaScript

//simulating the JSON coming from the server
var json = [{
    "female": [
        [1, 17, 99, 22],
        [3, 24, 13, 26],
        [7, 54, 11, 27]
    ],
    "male": [
        [1, 18, 75, 33],
        [3, 15, 44, 47],
        [7, 27, 86, 55]
    ]
}];
//jQuery getJSON will do this step
var gender = 'male';
var age = 3;

var resultNumber = json[0][gender].filter(function (i) {
    if (i[0] == age) {
        return true;
    }
})[0][2];

alert(resultNumber);