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Finding the Fourth Proportional to 22,140.74, 30,553.77 and 12,204.74

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Solution

The fourth proportional to 22,140.74, 30,553.77 and 12,204.74 is: 16,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,140.74 : 30,553.77 = 12,204.74 : x
  2. Step 2: Convert to fraction form
    22,140.74/30,553.77 = 12,204.74/x
  3. Step 3: Cross multiply
    22,140.74x = 30,553.77 × 12,204.74
  4. Step 4: Simplify right side
    22,140.74x = 372,900,818.87
  5. Step 5: Solve for x
    x = 372,900,818.87/22,140.74
  6. Step 6: Final answer
    x = 16,842.29

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.