Home / 20,150.88-27,794.40-12,179.28

Finding the Fourth Proportional to 20,150.88, 27,794.40 and 12,179.28

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Solution

The fourth proportional to 20,150.88, 27,794.40 and 12,179.28 is: 16,799.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.88 : 27,794.40 = 12,179.28 : x
  2. Step 2: Convert to fraction form
    20,150.88/27,794.40 = 12,179.28/x
  3. Step 3: Cross multiply
    20,150.88x = 27,794.40 × 12,179.28
  4. Step 4: Simplify right side
    20,150.88x = 338,515,780.03
  5. Step 5: Solve for x
    x = 338,515,780.03/20,150.88
  6. Step 6: Final answer
    x = 16,799.06

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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.