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Finding the Fourth Proportional to 20,599.57, 30,899.17 and 7,451.83

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Solution

The fourth proportional to 20,599.57, 30,899.17 and 7,451.83 is: 11,177.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.57 : 30,899.17 = 7,451.83 : x
  2. Step 2: Convert to fraction form
    20,599.57/30,899.17 = 7,451.83/x
  3. Step 3: Cross multiply
    20,599.57x = 30,899.17 × 7,451.83
  4. Step 4: Simplify right side
    20,599.57x = 230,255,361.98
  5. Step 5: Solve for x
    x = 230,255,361.98/20,599.57
  6. Step 6: Final answer
    x = 11,177.68

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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.