Home / 26,979.86-40,474.66-12,195.74

Finding the Fourth Proportional to 26,979.86, 40,474.66 and 12,195.74

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Solution

The fourth proportional to 26,979.86, 40,474.66 and 12,195.74 is: 18,295.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.86 : 40,474.66 = 12,195.74 : x
  2. Step 2: Convert to fraction form
    26,979.86/40,474.66 = 12,195.74/x
  3. Step 3: Cross multiply
    26,979.86x = 40,474.66 × 12,195.74
  4. Step 4: Simplify right side
    26,979.86x = 493,618,429.95
  5. Step 5: Solve for x
    x = 493,618,429.95/26,979.86
  6. Step 6: Final answer
    x = 18,295.81

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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.