Home / 20,452.43-28,226.09-11,500.79

Finding the Fourth Proportional to 20,452.43, 28,226.09 and 11,500.79

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Solution

The fourth proportional to 20,452.43, 28,226.09 and 11,500.79 is: 15,872.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.43 : 28,226.09 = 11,500.79 : x
  2. Step 2: Convert to fraction form
    20,452.43/28,226.09 = 11,500.79/x
  3. Step 3: Cross multiply
    20,452.43x = 28,226.09 × 11,500.79
  4. Step 4: Simplify right side
    20,452.43x = 324,622,221.23
  5. Step 5: Solve for x
    x = 324,622,221.23/20,452.43
  6. Step 6: Final answer
    x = 15,872.06

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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.