Home / 20,404.33-28,160.73-11,452.32

Finding the Fourth Proportional to 20,404.33, 28,160.73 and 11,452.32

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Solution

The fourth proportional to 20,404.33, 28,160.73 and 11,452.32 is: 15,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.33 : 28,160.73 = 11,452.32 : x
  2. Step 2: Convert to fraction form
    20,404.33/28,160.73 = 11,452.32/x
  3. Step 3: Cross multiply
    20,404.33x = 28,160.73 × 11,452.32
  4. Step 4: Simplify right side
    20,404.33x = 322,505,739.73
  5. Step 5: Solve for x
    x = 322,505,739.73/20,404.33
  6. Step 6: Final answer
    x = 15,805.75

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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.