Home / 20,697.24-31,034.49-8,204.61

Finding the Fourth Proportional to 20,697.24, 31,034.49 and 8,204.61

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Solution

The fourth proportional to 20,697.24, 31,034.49 and 8,204.61 is: 12,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.24 : 31,034.49 = 8,204.61 : x
  2. Step 2: Convert to fraction form
    20,697.24/31,034.49 = 8,204.61/x
  3. Step 3: Cross multiply
    20,697.24x = 31,034.49 × 8,204.61
  4. Step 4: Simplify right side
    20,697.24x = 254,625,887.00
  5. Step 5: Solve for x
    x = 254,625,887.00/20,697.24
  6. Step 6: Final answer
    x = 12,302.41

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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.