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Finding the Fourth Proportional to 20,491.92, 30,737.52 and 5,701.68

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Solution

The fourth proportional to 20,491.92, 30,737.52 and 5,701.68 is: 8,552.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,491.92 : 30,737.52 = 5,701.68 : x
  2. Step 2: Convert to fraction form
    20,491.92/30,737.52 = 5,701.68/x
  3. Step 3: Cross multiply
    20,491.92x = 30,737.52 × 5,701.68
  4. Step 4: Simplify right side
    20,491.92x = 175,255,503.03
  5. Step 5: Solve for x
    x = 175,255,503.03/20,491.92
  6. Step 6: Final answer
    x = 8,552.42

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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.