Home / 20,067.59-27,692.91-11,115.07

Finding the Fourth Proportional to 20,067.59, 27,692.91 and 11,115.07

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Solution

The fourth proportional to 20,067.59, 27,692.91 and 11,115.07 is: 15,338.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,067.59 : 27,692.91 = 11,115.07 : x
  2. Step 2: Convert to fraction form
    20,067.59/27,692.91 = 11,115.07/x
  3. Step 3: Cross multiply
    20,067.59x = 27,692.91 × 11,115.07
  4. Step 4: Simplify right side
    20,067.59x = 307,808,563.92
  5. Step 5: Solve for x
    x = 307,808,563.92/20,067.59
  6. Step 6: Final answer
    x = 15,338.59

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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.