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Finding the Fourth Proportional to 30,144.62, 45,227.90 and 10,425.17

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Solution

The fourth proportional to 30,144.62, 45,227.90 and 10,425.17 is: 15,641.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,144.62 : 45,227.90 = 10,425.17 : x
  2. Step 2: Convert to fraction form
    30,144.62/45,227.90 = 10,425.17/x
  3. Step 3: Cross multiply
    30,144.62x = 45,227.90 × 10,425.17
  4. Step 4: Simplify right side
    30,144.62x = 471,508,685.38
  5. Step 5: Solve for x
    x = 471,508,685.38/30,144.62
  6. Step 6: Final answer
    x = 15,641.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.