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Finding the Fourth Proportional to 20,337.70, 30,500.07 and 10,475.68

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Solution

The fourth proportional to 20,337.70, 30,500.07 and 10,475.68 is: 15,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.70 : 30,500.07 = 10,475.68 : x
  2. Step 2: Convert to fraction form
    20,337.70/30,500.07 = 10,475.68/x
  3. Step 3: Cross multiply
    20,337.70x = 30,500.07 × 10,475.68
  4. Step 4: Simplify right side
    20,337.70x = 319,508,973.30
  5. Step 5: Solve for x
    x = 319,508,973.30/20,337.70
  6. Step 6: Final answer
    x = 15,710.18

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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.