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Finding the Fourth Proportional to 30,891.52, 46,340.52 and 10,115.02

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Solution

The fourth proportional to 30,891.52, 46,340.52 and 10,115.02 is: 15,173.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,891.52 : 46,340.52 = 10,115.02 : x
  2. Step 2: Convert to fraction form
    30,891.52/46,340.52 = 10,115.02/x
  3. Step 3: Cross multiply
    30,891.52x = 46,340.52 × 10,115.02
  4. Step 4: Simplify right side
    30,891.52x = 468,735,286.61
  5. Step 5: Solve for x
    x = 468,735,286.61/30,891.52
  6. Step 6: Final answer
    x = 15,173.59

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.