Home / 43,479.18-65,186.82-13,879.92

Finding the Fourth Proportional to 43,479.18, 65,186.82 and 13,879.92

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Solution

The fourth proportional to 43,479.18, 65,186.82 and 13,879.92 is: 20,809.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,479.18 : 65,186.82 = 13,879.92 : x
  2. Step 2: Convert to fraction form
    43,479.18/65,186.82 = 13,879.92/x
  3. Step 3: Cross multiply
    43,479.18x = 65,186.82 × 13,879.92
  4. Step 4: Simplify right side
    43,479.18x = 904,787,846.65
  5. Step 5: Solve for x
    x = 904,787,846.65/43,479.18
  6. Step 6: Final answer
    x = 20,809.68

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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.