Home / 28,983.75-43,488.13-15,654.09

Finding the Fourth Proportional to 28,983.75, 43,488.13 and 15,654.09

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Solution

The fourth proportional to 28,983.75, 43,488.13 and 15,654.09 is: 23,487.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.75 : 43,488.13 = 15,654.09 : x
  2. Step 2: Convert to fraction form
    28,983.75/43,488.13 = 15,654.09/x
  3. Step 3: Cross multiply
    28,983.75x = 43,488.13 × 15,654.09
  4. Step 4: Simplify right side
    28,983.75x = 680,767,298.28
  5. Step 5: Solve for x
    x = 680,767,298.28/28,983.75
  6. Step 6: Final answer
    x = 23,487.90

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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.