Home / 20,404.52-28,158.23-11,452.02

Finding the Fourth Proportional to 20,404.52, 28,158.23 and 11,452.02

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Solution

The fourth proportional to 20,404.52, 28,158.23 and 11,452.02 is: 15,803.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.52 : 28,158.23 = 11,452.02 : x
  2. Step 2: Convert to fraction form
    20,404.52/28,158.23 = 11,452.02/x
  3. Step 3: Cross multiply
    20,404.52x = 28,158.23 × 11,452.02
  4. Step 4: Simplify right side
    20,404.52x = 322,468,606.56
  5. Step 5: Solve for x
    x = 322,468,606.56/20,404.52
  6. Step 6: Final answer
    x = 15,803.79

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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.