Home / 26,879.61-40,319.49-8,159.79

Finding the Fourth Proportional to 26,879.61, 40,319.49 and 8,159.79

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Solution

The fourth proportional to 26,879.61, 40,319.49 and 8,159.79 is: 12,239.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,879.61 : 40,319.49 = 8,159.79 : x
  2. Step 2: Convert to fraction form
    26,879.61/40,319.49 = 8,159.79/x
  3. Step 3: Cross multiply
    26,879.61x = 40,319.49 × 8,159.79
  4. Step 4: Simplify right side
    26,879.61x = 328,998,571.31
  5. Step 5: Solve for x
    x = 328,998,571.31/26,879.61
  6. Step 6: Final answer
    x = 12,239.71

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1.5x scale

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.