Home / 20,304.08-28,020.24-11,229.56

Finding the Fourth Proportional to 20,304.08, 28,020.24 and 11,229.56

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Solution

The fourth proportional to 20,304.08, 28,020.24 and 11,229.56 is: 15,497.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,304.08 : 28,020.24 = 11,229.56 : x
  2. Step 2: Convert to fraction form
    20,304.08/28,020.24 = 11,229.56/x
  3. Step 3: Cross multiply
    20,304.08x = 28,020.24 × 11,229.56
  4. Step 4: Simplify right side
    20,304.08x = 314,654,966.29
  5. Step 5: Solve for x
    x = 314,654,966.29/20,304.08
  6. Step 6: Final answer
    x = 15,497.13

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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.