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Finding the Fourth Proportional to 20,252.70, 30,367.98 and 7,103.88

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Solution

The fourth proportional to 20,252.70, 30,367.98 and 7,103.88 is: 10,651.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,252.70 : 30,367.98 = 7,103.88 : x
  2. Step 2: Convert to fraction form
    20,252.70/30,367.98 = 7,103.88/x
  3. Step 3: Cross multiply
    20,252.70x = 30,367.98 × 7,103.88
  4. Step 4: Simplify right side
    20,252.70x = 215,730,485.76
  5. Step 5: Solve for x
    x = 215,730,485.76/20,252.70
  6. Step 6: Final answer
    x = 10,651.94

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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.