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Finding the Fourth Proportional to 28,873.14, 43,310.94 and 9,153.16

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Solution

The fourth proportional to 28,873.14, 43,310.94 and 9,153.16 is: 13,730.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,873.14 : 43,310.94 = 9,153.16 : x
  2. Step 2: Convert to fraction form
    28,873.14/43,310.94 = 9,153.16/x
  3. Step 3: Cross multiply
    28,873.14x = 43,310.94 × 9,153.16
  4. Step 4: Simplify right side
    28,873.14x = 396,431,963.57
  5. Step 5: Solve for x
    x = 396,431,963.57/28,873.14
  6. Step 6: Final answer
    x = 13,730.13

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Why These Related Problems?

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