Home / 26,517.41-39,789.05-12,478.82

Finding the Fourth Proportional to 26,517.41, 39,789.05 and 12,478.82

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Solution

The fourth proportional to 26,517.41, 39,789.05 and 12,478.82 is: 18,724.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,517.41 : 39,789.05 = 12,478.82 : x
  2. Step 2: Convert to fraction form
    26,517.41/39,789.05 = 12,478.82/x
  3. Step 3: Cross multiply
    26,517.41x = 39,789.05 × 12,478.82
  4. Step 4: Simplify right side
    26,517.41x = 496,520,392.92
  5. Step 5: Solve for x
    x = 496,520,392.92/26,517.41
  6. Step 6: Final answer
    x = 18,724.32

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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.