Home / 26,445.76-39,640.78-8,671.79

Finding the Fourth Proportional to 26,445.76, 39,640.78 and 8,671.79

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Solution

The fourth proportional to 26,445.76, 39,640.78 and 8,671.79 is: 12,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,445.76 : 39,640.78 = 8,671.79 : x
  2. Step 2: Convert to fraction form
    26,445.76/39,640.78 = 8,671.79/x
  3. Step 3: Cross multiply
    26,445.76x = 39,640.78 × 8,671.79
  4. Step 4: Simplify right side
    26,445.76x = 343,756,519.60
  5. Step 5: Solve for x
    x = 343,756,519.60/26,445.76
  6. Step 6: Final answer
    x = 12,998.55

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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.