Home / 27,679.82-38,198.25-15,104.57

Finding the Fourth Proportional to 27,679.82, 38,198.25 and 15,104.57

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Solution

The fourth proportional to 27,679.82, 38,198.25 and 15,104.57 is: 20,844.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,679.82 : 38,198.25 = 15,104.57 : x
  2. Step 2: Convert to fraction form
    27,679.82/38,198.25 = 15,104.57/x
  3. Step 3: Cross multiply
    27,679.82x = 38,198.25 × 15,104.57
  4. Step 4: Simplify right side
    27,679.82x = 576,967,950.01
  5. Step 5: Solve for x
    x = 576,967,950.01/27,679.82
  6. Step 6: Final answer
    x = 20,844.36

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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.