The difference between (1/4) of a number and 4 is equal to 30% of 5.2, find this number.
一个数的(1/4)与4的差等于5.2的30%，求这个数．
<gadget id="calculator">30 / 100</gadget>
<output>3/10 = around 0.3</output>

<gadget id="calculator">5.2 * (3/10)</gadget>
<output>1.56</output>

<gadget id="calculator">1.56 + 4</gadget>
<output>5.56</output>

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

<gadget id="calculator">5.56 / (1/4)</gadget>
<output>22.24</output>

<result>22.24</result>