Home / 20,141.30-27,799.44-11,191.88

Finding the Fourth Proportional to 20,141.30, 27,799.44 and 11,191.88

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Solution

The fourth proportional to 20,141.30, 27,799.44 and 11,191.88 is: 15,447.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,141.30 : 27,799.44 = 11,191.88 : x
  2. Step 2: Convert to fraction form
    20,141.30/27,799.44 = 11,191.88/x
  3. Step 3: Cross multiply
    20,141.30x = 27,799.44 × 11,191.88
  4. Step 4: Simplify right side
    20,141.30x = 311,127,996.55
  5. Step 5: Solve for x
    x = 311,127,996.55/20,141.30
  6. Step 6: Final answer
    x = 15,447.26

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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.