Home / 13,962.69-20,943.99-3,432.75

Finding the Fourth Proportional to 13,962.69, 20,943.99 and 3,432.75

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Solution

The fourth proportional to 13,962.69, 20,943.99 and 3,432.75 is: 5,149.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.69 : 20,943.99 = 3,432.75 : x
  2. Step 2: Convert to fraction form
    13,962.69/20,943.99 = 3,432.75/x
  3. Step 3: Cross multiply
    13,962.69x = 20,943.99 × 3,432.75
  4. Step 4: Simplify right side
    13,962.69x = 71,895,481.67
  5. Step 5: Solve for x
    x = 71,895,481.67/13,962.69
  6. Step 6: Final answer
    x = 5,149.11

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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.