Home / 43,251.92-64,872.30-13,672.75

Finding the Fourth Proportional to 43,251.92, 64,872.30 and 13,672.75

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Solution

The fourth proportional to 43,251.92, 64,872.30 and 13,672.75 is: 20,507.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,251.92 : 64,872.30 = 13,672.75 : x
  2. Step 2: Convert to fraction form
    43,251.92/64,872.30 = 13,672.75/x
  3. Step 3: Cross multiply
    43,251.92x = 64,872.30 × 13,672.75
  4. Step 4: Simplify right side
    43,251.92x = 886,982,739.83
  5. Step 5: Solve for x
    x = 886,982,739.83/43,251.92
  6. Step 6: Final answer
    x = 20,507.36

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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.