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Finding the Fourth Proportional to 20,343.96, 30,515.94 and 7,195.50

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Solution

The fourth proportional to 20,343.96, 30,515.94 and 7,195.50 is: 10,793.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,343.96 : 30,515.94 = 7,195.50 : x
  2. Step 2: Convert to fraction form
    20,343.96/30,515.94 = 7,195.50/x
  3. Step 3: Cross multiply
    20,343.96x = 30,515.94 × 7,195.50
  4. Step 4: Simplify right side
    20,343.96x = 219,577,446.27
  5. Step 5: Solve for x
    x = 219,577,446.27/20,343.96
  6. Step 6: Final answer
    x = 10,793.25

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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.