Home / 20,760.93-28,650.17-11,329.70

Finding the Fourth Proportional to 20,760.93, 28,650.17 and 11,329.70

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Solution

The fourth proportional to 20,760.93, 28,650.17 and 11,329.70 is: 15,635.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760.93 : 28,650.17 = 11,329.70 : x
  2. Step 2: Convert to fraction form
    20,760.93/28,650.17 = 11,329.70/x
  3. Step 3: Cross multiply
    20,760.93x = 28,650.17 × 11,329.70
  4. Step 4: Simplify right side
    20,760.93x = 324,597,716.12
  5. Step 5: Solve for x
    x = 324,597,716.12/20,760.93
  6. Step 6: Final answer
    x = 15,635.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.