Home / 43,578.18-65,375.76-13,993.74

Finding the Fourth Proportional to 43,578.18, 65,375.76 and 13,993.74

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Solution

The fourth proportional to 43,578.18, 65,375.76 and 13,993.74 is: 20,993.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,578.18 : 65,375.76 = 13,993.74 : x
  2. Step 2: Convert to fraction form
    43,578.18/65,375.76 = 13,993.74/x
  3. Step 3: Cross multiply
    43,578.18x = 65,375.76 × 13,993.74
  4. Step 4: Simplify right side
    43,578.18x = 914,851,387.74
  5. Step 5: Solve for x
    x = 914,851,387.74/43,578.18
  6. Step 6: Final answer
    x = 20,993.34

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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.