Home / 28,008.71-38,651.63-15,262.43

Finding the Fourth Proportional to 28,008.71, 38,651.63 and 15,262.43

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Solution

The fourth proportional to 28,008.71, 38,651.63 and 15,262.43 is: 21,061.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,008.71 : 38,651.63 = 15,262.43 : x
  2. Step 2: Convert to fraction form
    28,008.71/38,651.63 = 15,262.43/x
  3. Step 3: Cross multiply
    28,008.71x = 38,651.63 × 15,262.43
  4. Step 4: Simplify right side
    28,008.71x = 589,917,613.54
  5. Step 5: Solve for x
    x = 589,917,613.54/28,008.71
  6. Step 6: Final answer
    x = 21,061.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.