Home / 20,150.44-27,808.28-11,198.32

Finding the Fourth Proportional to 20,150.44, 27,808.28 and 11,198.32

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Solution

The fourth proportional to 20,150.44, 27,808.28 and 11,198.32 is: 15,454.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.44 : 27,808.28 = 11,198.32 : x
  2. Step 2: Convert to fraction form
    20,150.44/27,808.28 = 11,198.32/x
  3. Step 3: Cross multiply
    20,150.44x = 27,808.28 × 11,198.32
  4. Step 4: Simplify right side
    20,150.44x = 311,406,018.09
  5. Step 5: Solve for x
    x = 311,406,018.09/20,150.44
  6. Step 6: Final answer
    x = 15,454.06

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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.