Home / 20,144.40-27,799.50-11,192.48

Finding the Fourth Proportional to 20,144.40, 27,799.50 and 11,192.48

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Solution

The fourth proportional to 20,144.40, 27,799.50 and 11,192.48 is: 15,445.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.40 : 27,799.50 = 11,192.48 : x
  2. Step 2: Convert to fraction form
    20,144.40/27,799.50 = 11,192.48/x
  3. Step 3: Cross multiply
    20,144.40x = 27,799.50 × 11,192.48
  4. Step 4: Simplify right side
    20,144.40x = 311,145,347.76
  5. Step 5: Solve for x
    x = 311,145,347.76/20,144.40
  6. Step 6: Final answer
    x = 15,445.75

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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.