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Finding the Fourth Proportional to 38,502.60, 57,753.90 and 18,793.80

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Solution

The fourth proportional to 38,502.60, 57,753.90 and 18,793.80 is: 28,190.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,502.60 : 57,753.90 = 18,793.80 : x
  2. Step 2: Convert to fraction form
    38,502.60/57,753.90 = 18,793.80/x
  3. Step 3: Cross multiply
    38,502.60x = 57,753.90 × 18,793.80
  4. Step 4: Simplify right side
    38,502.60x = 1,085,415,245.82
  5. Step 5: Solve for x
    x = 1,085,415,245.82/38,502.60
  6. Step 6: Final answer
    x = 28,190.70

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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.