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Finding the Fourth Proportional to 22,683, 33,939 and 20,380.92

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Solution

The fourth proportional to 22,683, 33,939 and 20,380.92 is: 30,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,683 : 33,939 = 20,380.92 : x
  2. Step 2: Convert to fraction form
    22,683/33,939 = 20,380.92/x
  3. Step 3: Cross multiply
    22,683x = 33,939 × 20,380.92
  4. Step 4: Simplify right side
    22,683x = 691,708,043.88
  5. Step 5: Solve for x
    x = 691,708,043.88/22,683
  6. Step 6: Final answer
    x = 30,494.56

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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.