Home / 20,446.11-28,216.17-11,493.05

Finding the Fourth Proportional to 20,446.11, 28,216.17 and 11,493.05

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Solution

The fourth proportional to 20,446.11, 28,216.17 and 11,493.05 is: 15,860.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,446.11 : 28,216.17 = 11,493.05 : x
  2. Step 2: Convert to fraction form
    20,446.11/28,216.17 = 11,493.05/x
  3. Step 3: Cross multiply
    20,446.11x = 28,216.17 × 11,493.05
  4. Step 4: Simplify right side
    20,446.11x = 324,289,711.54
  5. Step 5: Solve for x
    x = 324,289,711.54/20,446.11
  6. Step 6: Final answer
    x = 15,860.70

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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.