Home / 43,679.82-65,519.37-12,515.10

Finding the Fourth Proportional to 43,679.82, 65,519.37 and 12,515.10

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Solution

The fourth proportional to 43,679.82, 65,519.37 and 12,515.10 is: 18,772.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,679.82 : 65,519.37 = 12,515.10 : x
  2. Step 2: Convert to fraction form
    43,679.82/65,519.37 = 12,515.10/x
  3. Step 3: Cross multiply
    43,679.82x = 65,519.37 × 12,515.10
  4. Step 4: Simplify right side
    43,679.82x = 819,981,467.49
  5. Step 5: Solve for x
    x = 819,981,467.49/43,679.82
  6. Step 6: Final answer
    x = 18,772.55

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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.