Home / 20,404.08-28,159.08-11,452.44

Finding the Fourth Proportional to 20,404.08, 28,159.08 and 11,452.44

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Solution

The fourth proportional to 20,404.08, 28,159.08 and 11,452.44 is: 15,805.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.08 : 28,159.08 = 11,452.44 : x
  2. Step 2: Convert to fraction form
    20,404.08/28,159.08 = 11,452.44/x
  3. Step 3: Cross multiply
    20,404.08x = 28,159.08 × 11,452.44
  4. Step 4: Simplify right side
    20,404.08x = 322,490,174.16
  5. Step 5: Solve for x
    x = 322,490,174.16/20,404.08
  6. Step 6: Final answer
    x = 15,805.18

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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.