Home / 20,144.36-27,799.26-11,192.42

Finding the Fourth Proportional to 20,144.36, 27,799.26 and 11,192.42

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Solution

The fourth proportional to 20,144.36, 27,799.26 and 11,192.42 is: 15,445.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.36 : 27,799.26 = 11,192.42 : x
  2. Step 2: Convert to fraction form
    20,144.36/27,799.26 = 11,192.42/x
  3. Step 3: Cross multiply
    20,144.36x = 27,799.26 × 11,192.42
  4. Step 4: Simplify right side
    20,144.36x = 311,140,993.61
  5. Step 5: Solve for x
    x = 311,140,993.61/20,144.36
  6. Step 6: Final answer
    x = 15,445.56

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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.