Home / 20,119.44-27,765.28-11,167.05

Finding the Fourth Proportional to 20,119.44, 27,765.28 and 11,167.05

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Solution

The fourth proportional to 20,119.44, 27,765.28 and 11,167.05 is: 15,410.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.44 : 27,765.28 = 11,167.05 : x
  2. Step 2: Convert to fraction form
    20,119.44/27,765.28 = 11,167.05/x
  3. Step 3: Cross multiply
    20,119.44x = 27,765.28 × 11,167.05
  4. Step 4: Simplify right side
    20,119.44x = 310,056,270.02
  5. Step 5: Solve for x
    x = 310,056,270.02/20,119.44
  6. Step 6: Final answer
    x = 15,410.78

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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.