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Finding the Fourth Proportional to 20,080.92, 27,713.10 and 12,122.70

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Solution

The fourth proportional to 20,080.92, 27,713.10 and 12,122.70 is: 16,730.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.92 : 27,713.10 = 12,122.70 : x
  2. Step 2: Convert to fraction form
    20,080.92/27,713.10 = 12,122.70/x
  3. Step 3: Cross multiply
    20,080.92x = 27,713.10 × 12,122.70
  4. Step 4: Simplify right side
    20,080.92x = 335,957,597.37
  5. Step 5: Solve for x
    x = 335,957,597.37/20,080.92
  6. Step 6: Final answer
    x = 16,730.19

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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.