Home / 20,198.00-30,270.26-15,500.06

Finding the Fourth Proportional to 20,198.00, 30,270.26 and 15,500.06

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Solution

The fourth proportional to 20,198.00, 30,270.26 and 15,500.06 is: 23,229.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,198.00 : 30,270.26 = 15,500.06 : x
  2. Step 2: Convert to fraction form
    20,198.00/30,270.26 = 15,500.06/x
  3. Step 3: Cross multiply
    20,198.00x = 30,270.26 × 15,500.06
  4. Step 4: Simplify right side
    20,198.00x = 469,190,694.86
  5. Step 5: Solve for x
    x = 469,190,694.86/20,198.00
  6. Step 6: Final answer
    x = 23,229.57

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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.