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Finding the Fourth Proportional to 20,059.92, 30,085.04 and 8,366.80

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Solution

The fourth proportional to 20,059.92, 30,085.04 and 8,366.80 is: 12,548.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,059.92 : 30,085.04 = 8,366.80 : x
  2. Step 2: Convert to fraction form
    20,059.92/30,085.04 = 8,366.80/x
  3. Step 3: Cross multiply
    20,059.92x = 30,085.04 × 8,366.80
  4. Step 4: Simplify right side
    20,059.92x = 251,715,512.67
  5. Step 5: Solve for x
    x = 251,715,512.67/20,059.92
  6. Step 6: Final answer
    x = 12,548.18

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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.