Home / 20,399.61-30,600.24-6,359.88

Finding the Fourth Proportional to 20,399.61, 30,600.24 and 6,359.88

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Solution

The fourth proportional to 20,399.61, 30,600.24 and 6,359.88 is: 9,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,399.61 : 30,600.24 = 6,359.88 : x
  2. Step 2: Convert to fraction form
    20,399.61/30,600.24 = 6,359.88/x
  3. Step 3: Cross multiply
    20,399.61x = 30,600.24 × 6,359.88
  4. Step 4: Simplify right side
    20,399.61x = 194,613,854.37
  5. Step 5: Solve for x
    x = 194,613,854.37/20,399.61
  6. Step 6: Final answer
    x = 9,540.08

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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.