Home / 30,481.22-42,072.52-17,736.86

Finding the Fourth Proportional to 30,481.22, 42,072.52 and 17,736.86

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Solution

The fourth proportional to 30,481.22, 42,072.52 and 17,736.86 is: 24,481.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,481.22 : 42,072.52 = 17,736.86 : x
  2. Step 2: Convert to fraction form
    30,481.22/42,072.52 = 17,736.86/x
  3. Step 3: Cross multiply
    30,481.22x = 42,072.52 × 17,736.86
  4. Step 4: Simplify right side
    30,481.22x = 746,234,397.09
  5. Step 5: Solve for x
    x = 746,234,397.09/30,481.22
  6. Step 6: Final answer
    x = 24,481.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.