Home / 20,177.11-27,844.28-11,103.03

Finding the Fourth Proportional to 20,177.11, 27,844.28 and 11,103.03

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Solution

The fourth proportional to 20,177.11, 27,844.28 and 11,103.03 is: 15,322.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,177.11 : 27,844.28 = 11,103.03 : x
  2. Step 2: Convert to fraction form
    20,177.11/27,844.28 = 11,103.03/x
  3. Step 3: Cross multiply
    20,177.11x = 27,844.28 × 11,103.03
  4. Step 4: Simplify right side
    20,177.11x = 309,155,815.20
  5. Step 5: Solve for x
    x = 309,155,815.20/20,177.11
  6. Step 6: Final answer
    x = 15,322.10

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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.