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Finding the Fourth Proportional to 22,481.11, 31,034.43 and 13,047.85

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Solution

The fourth proportional to 22,481.11, 31,034.43 and 13,047.85 is: 18,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,481.11 : 31,034.43 = 13,047.85 : x
  2. Step 2: Convert to fraction form
    22,481.11/31,034.43 = 13,047.85/x
  3. Step 3: Cross multiply
    22,481.11x = 31,034.43 × 13,047.85
  4. Step 4: Simplify right side
    22,481.11x = 404,932,587.48
  5. Step 5: Solve for x
    x = 404,932,587.48/22,481.11
  6. Step 6: Final answer
    x = 18,012.13

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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.