Home / 20,080.88-27,712.22-11,127.54

Finding the Fourth Proportional to 20,080.88, 27,712.22 and 11,127.54

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Solution

The fourth proportional to 20,080.88, 27,712.22 and 11,127.54 is: 15,356.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,080.88 : 27,712.22 = 11,127.54 : x
  2. Step 2: Convert to fraction form
    20,080.88/27,712.22 = 11,127.54/x
  3. Step 3: Cross multiply
    20,080.88x = 27,712.22 × 11,127.54
  4. Step 4: Simplify right side
    20,080.88x = 308,368,836.54
  5. Step 5: Solve for x
    x = 308,368,836.54/20,080.88
  6. Step 6: Final answer
    x = 15,356.34

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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.