Home / 20,239.88-27,926.40-12,169.84

Finding the Fourth Proportional to 20,239.88, 27,926.40 and 12,169.84

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Solution

The fourth proportional to 20,239.88, 27,926.40 and 12,169.84 is: 16,791.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,239.88 : 27,926.40 = 12,169.84 : x
  2. Step 2: Convert to fraction form
    20,239.88/27,926.40 = 12,169.84/x
  3. Step 3: Cross multiply
    20,239.88x = 27,926.40 × 12,169.84
  4. Step 4: Simplify right side
    20,239.88x = 339,859,819.78
  5. Step 5: Solve for x
    x = 339,859,819.78/20,239.88
  6. Step 6: Final answer
    x = 16,791.59

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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.