Home / 20,042.29-30,063.44-12,657.97

Finding the Fourth Proportional to 20,042.29, 30,063.44 and 12,657.97

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Solution

The fourth proportional to 20,042.29, 30,063.44 and 12,657.97 is: 18,986.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.29 : 30,063.44 = 12,657.97 : x
  2. Step 2: Convert to fraction form
    20,042.29/30,063.44 = 12,657.97/x
  3. Step 3: Cross multiply
    20,042.29x = 30,063.44 × 12,657.97
  4. Step 4: Simplify right side
    20,042.29x = 380,542,121.62
  5. Step 5: Solve for x
    x = 380,542,121.62/20,042.29
  6. Step 6: Final answer
    x = 18,986.96

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1.5x scale

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.