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Finding the Fourth Proportional to 22,716.59, 31,348.22 and 12,644.64

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Solution

The fourth proportional to 22,716.59, 31,348.22 and 12,644.64 is: 17,449.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,716.59 : 31,348.22 = 12,644.64 : x
  2. Step 2: Convert to fraction form
    22,716.59/31,348.22 = 12,644.64/x
  3. Step 3: Cross multiply
    22,716.59x = 31,348.22 × 12,644.64
  4. Step 4: Simplify right side
    22,716.59x = 396,386,893.32
  5. Step 5: Solve for x
    x = 396,386,893.32/22,716.59
  6. Step 6: Final answer
    x = 17,449.23

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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.