Home / 20,583.62-30,884.39-8,112.71

Finding the Fourth Proportional to 20,583.62, 30,884.39 and 8,112.71

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Solution

The fourth proportional to 20,583.62, 30,884.39 and 8,112.71 is: 12,172.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.62 : 30,884.39 = 8,112.71 : x
  2. Step 2: Convert to fraction form
    20,583.62/30,884.39 = 8,112.71/x
  3. Step 3: Cross multiply
    20,583.62x = 30,884.39 × 8,112.71
  4. Step 4: Simplify right side
    20,583.62x = 250,555,992.94
  5. Step 5: Solve for x
    x = 250,555,992.94/20,583.62
  6. Step 6: Final answer
    x = 12,172.59

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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.