Home / 18,791.38-28,187.97-15,498.37

Finding the Fourth Proportional to 18,791.38, 28,187.97 and 15,498.37

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Solution

The fourth proportional to 18,791.38, 28,187.97 and 15,498.37 is: 23,248.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,791.38 : 28,187.97 = 15,498.37 : x
  2. Step 2: Convert to fraction form
    18,791.38/28,187.97 = 15,498.37/x
  3. Step 3: Cross multiply
    18,791.38x = 28,187.97 × 15,498.37
  4. Step 4: Simplify right side
    18,791.38x = 436,867,588.61
  5. Step 5: Solve for x
    x = 436,867,588.61/18,791.38
  6. Step 6: Final answer
    x = 23,248.30

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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.