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Finding the Fourth Proportional to 19,591.29, 27,036.45 and 10,639.17

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Solution

The fourth proportional to 19,591.29, 27,036.45 and 10,639.17 is: 14,682.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.29 : 27,036.45 = 10,639.17 : x
  2. Step 2: Convert to fraction form
    19,591.29/27,036.45 = 10,639.17/x
  3. Step 3: Cross multiply
    19,591.29x = 27,036.45 × 10,639.17
  4. Step 4: Simplify right side
    19,591.29x = 287,645,387.75
  5. Step 5: Solve for x
    x = 287,645,387.75/19,591.29
  6. Step 6: Final answer
    x = 14,682.31

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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.