If a number is reduced by 4 times, the result of adding 4 to 3 after being reduced by 5 times is the same. Find this number.
一个数缩小4倍后与3缩小5倍后加4的结果相同，求这个数．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">3 * (1/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(3/5) + 4</gadget>
<output>23/5 = around 4.6</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(23/5) / (1/4)</gadget>
<output>92/5 = around 18.4</output>

<result>92/5 = around 18.4</result>