Home / 20,593.64-28,419.24-11,162.20

Finding the Fourth Proportional to 20,593.64, 28,419.24 and 11,162.20

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Solution

The fourth proportional to 20,593.64, 28,419.24 and 11,162.20 is: 15,403.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,593.64 : 28,419.24 = 11,162.20 : x
  2. Step 2: Convert to fraction form
    20,593.64/28,419.24 = 11,162.20/x
  3. Step 3: Cross multiply
    20,593.64x = 28,419.24 × 11,162.20
  4. Step 4: Simplify right side
    20,593.64x = 317,221,240.73
  5. Step 5: Solve for x
    x = 317,221,240.73/20,593.64
  6. Step 6: Final answer
    x = 15,403.85

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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.