Home / 20,349.20-30,534.16-11,927.85

Finding the Fourth Proportional to 20,349.20, 30,534.16 and 11,927.85

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Solution

The fourth proportional to 20,349.20, 30,534.16 and 11,927.85 is: 17,897.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.20 : 30,534.16 = 11,927.85 : x
  2. Step 2: Convert to fraction form
    20,349.20/30,534.16 = 11,927.85/x
  3. Step 3: Cross multiply
    20,349.20x = 30,534.16 × 11,927.85
  4. Step 4: Simplify right side
    20,349.20x = 364,206,850.54
  5. Step 5: Solve for x
    x = 364,206,850.54/20,349.20
  6. Step 6: Final answer
    x = 17,897.85

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1.5x scale

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.