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Finding the Fourth Proportional to 17,179.66, 23,755.65 and 13,636.72

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Solution

The fourth proportional to 17,179.66, 23,755.65 and 13,636.72 is: 18,856.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,179.66 : 23,755.65 = 13,636.72 : x
  2. Step 2: Convert to fraction form
    17,179.66/23,755.65 = 13,636.72/x
  3. Step 3: Cross multiply
    17,179.66x = 23,755.65 × 13,636.72
  4. Step 4: Simplify right side
    17,179.66x = 323,949,147.47
  5. Step 5: Solve for x
    x = 323,949,147.47/17,179.66
  6. Step 6: Final answer
    x = 18,856.55

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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.