Home / 40,418.80-60,628.22-12,339.02

Finding the Fourth Proportional to 40,418.80, 60,628.22 and 12,339.02

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Solution

The fourth proportional to 40,418.80, 60,628.22 and 12,339.02 is: 18,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,418.80 : 60,628.22 = 12,339.02 : x
  2. Step 2: Convert to fraction form
    40,418.80/60,628.22 = 12,339.02/x
  3. Step 3: Cross multiply
    40,418.80x = 60,628.22 × 12,339.02
  4. Step 4: Simplify right side
    40,418.80x = 748,092,819.14
  5. Step 5: Solve for x
    x = 748,092,819.14/40,418.80
  6. Step 6: Final answer
    x = 18,508.54

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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.