Home / 21,306.30-31,959.44-5,723.92

Finding the Fourth Proportional to 21,306.30, 31,959.44 and 5,723.92

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Solution

The fourth proportional to 21,306.30, 31,959.44 and 5,723.92 is: 8,585.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,306.30 : 31,959.44 = 5,723.92 : x
  2. Step 2: Convert to fraction form
    21,306.30/31,959.44 = 5,723.92/x
  3. Step 3: Cross multiply
    21,306.30x = 31,959.44 × 5,723.92
  4. Step 4: Simplify right side
    21,306.30x = 182,933,277.80
  5. Step 5: Solve for x
    x = 182,933,277.80/21,306.30
  6. Step 6: Final answer
    x = 8,585.88

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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.