Home / 20,219.41-27,902.85-11,723.20

Finding the Fourth Proportional to 20,219.41, 27,902.85 and 11,723.20

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Solution

The fourth proportional to 20,219.41, 27,902.85 and 11,723.20 is: 16,178.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219.41 : 27,902.85 = 11,723.20 : x
  2. Step 2: Convert to fraction form
    20,219.41/27,902.85 = 11,723.20/x
  3. Step 3: Cross multiply
    20,219.41x = 27,902.85 × 11,723.20
  4. Step 4: Simplify right side
    20,219.41x = 327,110,691.12
  5. Step 5: Solve for x
    x = 327,110,691.12/20,219.41
  6. Step 6: Final answer
    x = 16,178.05

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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.