Home / 20,119.55-27,764.97-11,167.05

Finding the Fourth Proportional to 20,119.55, 27,764.97 and 11,167.05

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Solution

The fourth proportional to 20,119.55, 27,764.97 and 11,167.05 is: 15,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,119.55 : 27,764.97 = 11,167.05 : x
  2. Step 2: Convert to fraction form
    20,119.55/27,764.97 = 11,167.05/x
  3. Step 3: Cross multiply
    20,119.55x = 27,764.97 × 11,167.05
  4. Step 4: Simplify right side
    20,119.55x = 310,052,808.24
  5. Step 5: Solve for x
    x = 310,052,808.24/20,119.55
  6. Step 6: Final answer
    x = 15,410.52

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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.