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Finding the Fourth Proportional to 20,337.92, 30,494.80 and 6,293.78

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Solution

The fourth proportional to 20,337.92, 30,494.80 and 6,293.78 is: 9,436.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.92 : 30,494.80 = 6,293.78 : x
  2. Step 2: Convert to fraction form
    20,337.92/30,494.80 = 6,293.78/x
  3. Step 3: Cross multiply
    20,337.92x = 30,494.80 × 6,293.78
  4. Step 4: Simplify right side
    20,337.92x = 191,927,562.34
  5. Step 5: Solve for x
    x = 191,927,562.34/20,337.92
  6. Step 6: Final answer
    x = 9,436.93

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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.