Home / 20,067.68-30,103.82-11,747.76

Finding the Fourth Proportional to 20,067.68, 30,103.82 and 11,747.76

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Solution

The fourth proportional to 20,067.68, 30,103.82 and 11,747.76 is: 17,622.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.68 : 30,103.82 = 11,747.76 : x
  2. Step 2: Convert to fraction form
    20,067.68/30,103.82 = 11,747.76/x
  3. Step 3: Cross multiply
    20,067.68x = 30,103.82 × 11,747.76
  4. Step 4: Simplify right side
    20,067.68x = 353,652,452.44
  5. Step 5: Solve for x
    x = 353,652,452.44/20,067.68
  6. Step 6: Final answer
    x = 17,622.99

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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.