Home / 43,321.24-64,879.50-21,149.80

Finding the Fourth Proportional to 43,321.24, 64,879.50 and 21,149.80

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Solution

The fourth proportional to 43,321.24, 64,879.50 and 21,149.80 is: 31,674.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,321.24 : 64,879.50 = 21,149.80 : x
  2. Step 2: Convert to fraction form
    43,321.24/64,879.50 = 21,149.80/x
  3. Step 3: Cross multiply
    43,321.24x = 64,879.50 × 21,149.80
  4. Step 4: Simplify right side
    43,321.24x = 1,372,188,449.10
  5. Step 5: Solve for x
    x = 1,372,188,449.10/43,321.24
  6. Step 6: Final answer
    x = 31,674.73

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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.