Home / 43,491.50-65,218.80-15,418.62

Finding the Fourth Proportional to 43,491.50, 65,218.80 and 15,418.62

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Solution

The fourth proportional to 43,491.50, 65,218.80 and 15,418.62 is: 23,121.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,491.50 : 65,218.80 = 15,418.62 : x
  2. Step 2: Convert to fraction form
    43,491.50/65,218.80 = 15,418.62/x
  3. Step 3: Cross multiply
    43,491.50x = 65,218.80 × 15,418.62
  4. Step 4: Simplify right side
    43,491.50x = 1,005,583,821.78
  5. Step 5: Solve for x
    x = 1,005,583,821.78/43,491.50
  6. Step 6: Final answer
    x = 23,121.39

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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.