Home / 20,067.12-27,691.44-11,114.12

Finding the Fourth Proportional to 20,067.12, 27,691.44 and 11,114.12

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Solution

The fourth proportional to 20,067.12, 27,691.44 and 11,114.12 is: 15,336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.12 : 27,691.44 = 11,114.12 : x
  2. Step 2: Convert to fraction form
    20,067.12/27,691.44 = 11,114.12/x
  3. Step 3: Cross multiply
    20,067.12x = 27,691.44 × 11,114.12
  4. Step 4: Simplify right side
    20,067.12x = 307,765,987.13
  5. Step 5: Solve for x
    x = 307,765,987.13/20,067.12
  6. Step 6: Final answer
    x = 15,336.83

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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.