Home / 20,739.52-31,098.30-8,253.16

Finding the Fourth Proportional to 20,739.52, 31,098.30 and 8,253.16

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Solution

The fourth proportional to 20,739.52, 31,098.30 and 8,253.16 is: 12,375.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.52 : 31,098.30 = 8,253.16 : x
  2. Step 2: Convert to fraction form
    20,739.52/31,098.30 = 8,253.16/x
  3. Step 3: Cross multiply
    20,739.52x = 31,098.30 × 8,253.16
  4. Step 4: Simplify right side
    20,739.52x = 256,659,245.63
  5. Step 5: Solve for x
    x = 256,659,245.63/20,739.52
  6. Step 6: Final answer
    x = 12,375.37

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1.5x scale

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.