Home / 27,926.91-38,540.88-15,989.94

Finding the Fourth Proportional to 27,926.91, 38,540.88 and 15,989.94

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Solution

The fourth proportional to 27,926.91, 38,540.88 and 15,989.94 is: 22,067.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,926.91 : 38,540.88 = 15,989.94 : x
  2. Step 2: Convert to fraction form
    27,926.91/38,540.88 = 15,989.94/x
  3. Step 3: Cross multiply
    27,926.91x = 38,540.88 × 15,989.94
  4. Step 4: Simplify right side
    27,926.91x = 616,266,358.75
  5. Step 5: Solve for x
    x = 616,266,358.75/27,926.91
  6. Step 6: Final answer
    x = 22,067.12

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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.