Home / 26,712.28-40,081.02-11,919.88

Finding the Fourth Proportional to 26,712.28, 40,081.02 and 11,919.88

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Solution

The fourth proportional to 26,712.28, 40,081.02 and 11,919.88 is: 17,885.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,712.28 : 40,081.02 = 11,919.88 : x
  2. Step 2: Convert to fraction form
    26,712.28/40,081.02 = 11,919.88/x
  3. Step 3: Cross multiply
    26,712.28x = 40,081.02 × 11,919.88
  4. Step 4: Simplify right side
    26,712.28x = 477,760,948.68
  5. Step 5: Solve for x
    x = 477,760,948.68/26,712.28
  6. Step 6: Final answer
    x = 17,885.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.