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Finding the Fourth Proportional to 30,634.38, 45,953.07 and 8,447.25

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Solution

The fourth proportional to 30,634.38, 45,953.07 and 8,447.25 is: 12,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,634.38 : 45,953.07 = 8,447.25 : x
  2. Step 2: Convert to fraction form
    30,634.38/45,953.07 = 8,447.25/x
  3. Step 3: Cross multiply
    30,634.38x = 45,953.07 × 8,447.25
  4. Step 4: Simplify right side
    30,634.38x = 388,177,070.56
  5. Step 5: Solve for x
    x = 388,177,070.56/30,634.38
  6. Step 6: Final answer
    x = 12,671.29

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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.