Home / 31,001.28-42,780.38-17,572.25

Finding the Fourth Proportional to 31,001.28, 42,780.38 and 17,572.25

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Solution

The fourth proportional to 31,001.28, 42,780.38 and 17,572.25 is: 24,248.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.28 : 42,780.38 = 17,572.25 : x
  2. Step 2: Convert to fraction form
    31,001.28/42,780.38 = 17,572.25/x
  3. Step 3: Cross multiply
    31,001.28x = 42,780.38 × 17,572.25
  4. Step 4: Simplify right side
    31,001.28x = 751,747,230.69
  5. Step 5: Solve for x
    x = 751,747,230.69/31,001.28
  6. Step 6: Final answer
    x = 24,248.91

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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.