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Finding the Fourth Proportional to 36,689.96, 54,915.57 and 20,008.62

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Solution

The fourth proportional to 36,689.96, 54,915.57 and 20,008.62 is: 29,947.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,689.96 : 54,915.57 = 20,008.62 : x
  2. Step 2: Convert to fraction form
    36,689.96/54,915.57 = 20,008.62/x
  3. Step 3: Cross multiply
    36,689.96x = 54,915.57 × 20,008.62
  4. Step 4: Simplify right side
    36,689.96x = 1,098,784,772.21
  5. Step 5: Solve for x
    x = 1,098,784,772.21/36,689.96
  6. Step 6: Final answer
    x = 29,947.83

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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.