Home / 20,067.21-27,691.47-11,568.89

Finding the Fourth Proportional to 20,067.21, 27,691.47 and 11,568.89

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Solution

The fourth proportional to 20,067.21, 27,691.47 and 11,568.89 is: 15,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.21 : 27,691.47 = 11,568.89 : x
  2. Step 2: Convert to fraction form
    20,067.21/27,691.47 = 11,568.89/x
  3. Step 3: Cross multiply
    20,067.21x = 27,691.47 × 11,568.89
  4. Step 4: Simplify right side
    20,067.21x = 320,359,639.60
  5. Step 5: Solve for x
    x = 320,359,639.60/20,067.21
  6. Step 6: Final answer
    x = 15,964.33

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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.