Home / 28,687.97-43,099.62-16,872.02

Finding the Fourth Proportional to 28,687.97, 43,099.62 and 16,872.02

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Solution

The fourth proportional to 28,687.97, 43,099.62 and 16,872.02 is: 25,347.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,687.97 : 43,099.62 = 16,872.02 : x
  2. Step 2: Convert to fraction form
    28,687.97/43,099.62 = 16,872.02/x
  3. Step 3: Cross multiply
    28,687.97x = 43,099.62 × 16,872.02
  4. Step 4: Simplify right side
    28,687.97x = 727,177,702.16
  5. Step 5: Solve for x
    x = 727,177,702.16/28,687.97
  6. Step 6: Final answer
    x = 25,347.82

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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.