Home / 20,932.32-31,398.24-5,349.88

Finding the Fourth Proportional to 20,932.32, 31,398.24 and 5,349.88

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Solution

The fourth proportional to 20,932.32, 31,398.24 and 5,349.88 is: 8,024.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,932.32 : 31,398.24 = 5,349.88 : x
  2. Step 2: Convert to fraction form
    20,932.32/31,398.24 = 5,349.88/x
  3. Step 3: Cross multiply
    20,932.32x = 31,398.24 × 5,349.88
  4. Step 4: Simplify right side
    20,932.32x = 167,976,816.21
  5. Step 5: Solve for x
    x = 167,976,816.21/20,932.32
  6. Step 6: Final answer
    x = 8,024.76

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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.