Home / 20,404.52-30,581.40-9,308.24

Finding the Fourth Proportional to 20,404.52, 30,581.40 and 9,308.24

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Solution

The fourth proportional to 20,404.52, 30,581.40 and 9,308.24 is: 13,950.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,404.52 : 30,581.40 = 9,308.24 : x
  2. Step 2: Convert to fraction form
    20,404.52/30,581.40 = 9,308.24/x
  3. Step 3: Cross multiply
    20,404.52x = 30,581.40 × 9,308.24
  4. Step 4: Simplify right side
    20,404.52x = 284,659,010.74
  5. Step 5: Solve for x
    x = 284,659,010.74/20,404.52
  6. Step 6: Final answer
    x = 13,950.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.