Home / 43,198.40-64,816.42-15,138.66

Finding the Fourth Proportional to 43,198.40, 64,816.42 and 15,138.66

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Solution

The fourth proportional to 43,198.40, 64,816.42 and 15,138.66 is: 22,714.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,198.40 : 64,816.42 = 15,138.66 : x
  2. Step 2: Convert to fraction form
    43,198.40/64,816.42 = 15,138.66/x
  3. Step 3: Cross multiply
    43,198.40x = 64,816.42 × 15,138.66
  4. Step 4: Simplify right side
    43,198.40x = 981,233,744.80
  5. Step 5: Solve for x
    x = 981,233,744.80/43,198.40
  6. Step 6: Final answer
    x = 22,714.59

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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.