4,000 is \( 40 \% \) of what number?

To find out what number 4,000 is 40% of, you can set up the equation: \( 0.40 \times x = 4,000 \). By rearranging the equation to solve for \( x \), you can divide both sides by 0.40. This gives you \( x = \frac{4,000}{0.40} \), which equals 10,000. So, 4,000 is 40% of 10,000! Calculating percentages in real-life scenarios can be super useful! For instance, if you're looking at discounts while shopping, understanding how to quickly find what a percentage represents can help you snag the best deals. So next time you see a “40% off” sign, remember to do the math and see how much you're saving!