Home / 20,100.73-30,148.96-8,255.75

Finding the Fourth Proportional to 20,100.73, 30,148.96 and 8,255.75

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Solution

The fourth proportional to 20,100.73, 30,148.96 and 8,255.75 is: 12,382.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.73 : 30,148.96 = 8,255.75 : x
  2. Step 2: Convert to fraction form
    20,100.73/30,148.96 = 8,255.75/x
  3. Step 3: Cross multiply
    20,100.73x = 30,148.96 × 8,255.75
  4. Step 4: Simplify right side
    20,100.73x = 248,902,276.52
  5. Step 5: Solve for x
    x = 248,902,276.52/20,100.73
  6. Step 6: Final answer
    x = 12,382.75

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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.