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Finding the Fourth Proportional to 20,488.88, 30,737.40 and 6,452.44

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Solution

The fourth proportional to 20,488.88, 30,737.40 and 6,452.44 is: 9,679.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488.88 : 30,737.40 = 6,452.44 : x
  2. Step 2: Convert to fraction form
    20,488.88/30,737.40 = 6,452.44/x
  3. Step 3: Cross multiply
    20,488.88x = 30,737.40 × 6,452.44
  4. Step 4: Simplify right side
    20,488.88x = 198,331,229.26
  5. Step 5: Solve for x
    x = 198,331,229.26/20,488.88
  6. Step 6: Final answer
    x = 9,679.94

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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.