Home / 20,194.62-30,296.79-8,511.18

Finding the Fourth Proportional to 20,194.62, 30,296.79 and 8,511.18

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Solution

The fourth proportional to 20,194.62, 30,296.79 and 8,511.18 is: 12,768.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194.62 : 30,296.79 = 8,511.18 : x
  2. Step 2: Convert to fraction form
    20,194.62/30,296.79 = 8,511.18/x
  3. Step 3: Cross multiply
    20,194.62x = 30,296.79 × 8,511.18
  4. Step 4: Simplify right side
    20,194.62x = 257,861,433.11
  5. Step 5: Solve for x
    x = 257,861,433.11/20,194.62
  6. Step 6: Final answer
    x = 12,768.82

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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.