Home / 28,872.27-43,309.62-9,150.39

Finding the Fourth Proportional to 28,872.27, 43,309.62 and 9,150.39

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Solution

The fourth proportional to 28,872.27, 43,309.62 and 9,150.39 is: 13,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,872.27 : 43,309.62 = 9,150.39 : x
  2. Step 2: Convert to fraction form
    28,872.27/43,309.62 = 9,150.39/x
  3. Step 3: Cross multiply
    28,872.27x = 43,309.62 × 9,150.39
  4. Step 4: Simplify right side
    28,872.27x = 396,299,913.75
  5. Step 5: Solve for x
    x = 396,299,913.75/28,872.27
  6. Step 6: Final answer
    x = 13,725.97

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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.