Home / 20,250.06-30,379.97-6,399.06

Finding the Fourth Proportional to 20,250.06, 30,379.97 and 6,399.06

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Solution

The fourth proportional to 20,250.06, 30,379.97 and 6,399.06 is: 9,600.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,250.06 : 30,379.97 = 6,399.06 : x
  2. Step 2: Convert to fraction form
    20,250.06/30,379.97 = 6,399.06/x
  3. Step 3: Cross multiply
    20,250.06x = 30,379.97 × 6,399.06
  4. Step 4: Simplify right side
    20,250.06x = 194,403,250.83
  5. Step 5: Solve for x
    x = 194,403,250.83/20,250.06
  6. Step 6: Final answer
    x = 9,600.13

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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.