Home / 20,755.00-31,129.16-5,960.55

Finding the Fourth Proportional to 20,755.00, 31,129.16 and 5,960.55

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Solution

The fourth proportional to 20,755.00, 31,129.16 and 5,960.55 is: 8,939.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.00 : 31,129.16 = 5,960.55 : x
  2. Step 2: Convert to fraction form
    20,755.00/31,129.16 = 5,960.55/x
  3. Step 3: Cross multiply
    20,755.00x = 31,129.16 × 5,960.55
  4. Step 4: Simplify right side
    20,755.00x = 185,546,914.02
  5. Step 5: Solve for x
    x = 185,546,914.02/20,755.00
  6. Step 6: Final answer
    x = 8,939.87

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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.