Home / 20,067.54-27,692.42-11,115.42

Finding the Fourth Proportional to 20,067.54, 27,692.42 and 11,115.42

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Solution

The fourth proportional to 20,067.54, 27,692.42 and 11,115.42 is: 15,338.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.54 : 27,692.42 = 11,115.42 : x
  2. Step 2: Convert to fraction form
    20,067.54/27,692.42 = 11,115.42/x
  3. Step 3: Cross multiply
    20,067.54x = 27,692.42 × 11,115.42
  4. Step 4: Simplify right side
    20,067.54x = 307,812,879.12
  5. Step 5: Solve for x
    x = 307,812,879.12/20,067.54
  6. Step 6: Final answer
    x = 15,338.84

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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.