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Finding the Fourth Proportional to 18,067.75, 27,101.10 and 4,920.23

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Solution

The fourth proportional to 18,067.75, 27,101.10 and 4,920.23 is: 7,380.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.75 : 27,101.10 = 4,920.23 : x
  2. Step 2: Convert to fraction form
    18,067.75/27,101.10 = 4,920.23/x
  3. Step 3: Cross multiply
    18,067.75x = 27,101.10 × 4,920.23
  4. Step 4: Simplify right side
    18,067.75x = 133,343,645.25
  5. Step 5: Solve for x
    x = 133,343,645.25/18,067.75
  6. Step 6: Final answer
    x = 7,380.20

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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.