Home / 40,380.48-60,578.28-12,672

Finding the Fourth Proportional to 40,380.48, 60,578.28 and 12,672

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Solution

The fourth proportional to 40,380.48, 60,578.28 and 12,672 is: 19,010.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,380.48 : 60,578.28 = 12,672 : x
  2. Step 2: Convert to fraction form
    40,380.48/60,578.28 = 12,672/x
  3. Step 3: Cross multiply
    40,380.48x = 60,578.28 × 12,672
  4. Step 4: Simplify right side
    40,380.48x = 767,647,964.16
  5. Step 5: Solve for x
    x = 767,647,964.16/40,380.48
  6. Step 6: Final answer
    x = 19,010.37

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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.