Home / 21,540.64-32,311.01-6,750.85

Finding the Fourth Proportional to 21,540.64, 32,311.01 and 6,750.85

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Solution

The fourth proportional to 21,540.64, 32,311.01 and 6,750.85 is: 10,126.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,540.64 : 32,311.01 = 6,750.85 : x
  2. Step 2: Convert to fraction form
    21,540.64/32,311.01 = 6,750.85/x
  3. Step 3: Cross multiply
    21,540.64x = 32,311.01 × 6,750.85
  4. Step 4: Simplify right side
    21,540.64x = 218,126,781.86
  5. Step 5: Solve for x
    x = 218,126,781.86/21,540.64
  6. Step 6: Final answer
    x = 10,126.29

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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.