Home / 25,910.89-38,872.01-8,380.47

Finding the Fourth Proportional to 25,910.89, 38,872.01 and 8,380.47

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Solution

The fourth proportional to 25,910.89, 38,872.01 and 8,380.47 is: 12,572.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,910.89 : 38,872.01 = 8,380.47 : x
  2. Step 2: Convert to fraction form
    25,910.89/38,872.01 = 8,380.47/x
  3. Step 3: Cross multiply
    25,910.89x = 38,872.01 × 8,380.47
  4. Step 4: Simplify right side
    25,910.89x = 325,765,713.64
  5. Step 5: Solve for x
    x = 325,765,713.64/25,910.89
  6. Step 6: Final answer
    x = 12,572.54

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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.