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Finding the Fourth Proportional to 22,497.75, 31,046.90 and 12,561.75

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Solution

The fourth proportional to 22,497.75, 31,046.90 and 12,561.75 is: 17,335.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,497.75 : 31,046.90 = 12,561.75 : x
  2. Step 2: Convert to fraction form
    22,497.75/31,046.90 = 12,561.75/x
  3. Step 3: Cross multiply
    22,497.75x = 31,046.90 × 12,561.75
  4. Step 4: Simplify right side
    22,497.75x = 390,003,333.27
  5. Step 5: Solve for x
    x = 390,003,333.27/22,497.75
  6. Step 6: Final answer
    x = 17,335.22

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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.