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Finding the Fourth Proportional to 20,604.46, 30,893.02 and 7,455.12

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Solution

The fourth proportional to 20,604.46, 30,893.02 and 7,455.12 is: 11,177.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,604.46 : 30,893.02 = 7,455.12 : x
  2. Step 2: Convert to fraction form
    20,604.46/30,893.02 = 7,455.12/x
  3. Step 3: Cross multiply
    20,604.46x = 30,893.02 × 7,455.12
  4. Step 4: Simplify right side
    20,604.46x = 230,311,171.26
  5. Step 5: Solve for x
    x = 230,311,171.26/20,604.46
  6. Step 6: Final answer
    x = 11,177.73

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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.