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Finding the Fourth Proportional to 20,367.87, 30,532.88 and 7,896.03

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Solution

The fourth proportional to 20,367.87, 30,532.88 and 7,896.03 is: 11,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,367.87 : 30,532.88 = 7,896.03 : x
  2. Step 2: Convert to fraction form
    20,367.87/30,532.88 = 7,896.03/x
  3. Step 3: Cross multiply
    20,367.87x = 30,532.88 × 7,896.03
  4. Step 4: Simplify right side
    20,367.87x = 241,088,496.99
  5. Step 5: Solve for x
    x = 241,088,496.99/20,367.87
  6. Step 6: Final answer
    x = 11,836.71

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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.