Home / 26,876.20-40,314.30-18,581.80

Finding the Fourth Proportional to 26,876.20, 40,314.30 and 18,581.80

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Solution

The fourth proportional to 26,876.20, 40,314.30 and 18,581.80 is: 27,872.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,876.20 : 40,314.30 = 18,581.80 : x
  2. Step 2: Convert to fraction form
    26,876.20/40,314.30 = 18,581.80/x
  3. Step 3: Cross multiply
    26,876.20x = 40,314.30 × 18,581.80
  4. Step 4: Simplify right side
    26,876.20x = 749,112,259.74
  5. Step 5: Solve for x
    x = 749,112,259.74/26,876.20
  6. Step 6: Final answer
    x = 27,872.70

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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.