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Finding the Fourth Proportional to 43,388.67, 65,092.78 and 15,310.73

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Solution

The fourth proportional to 43,388.67, 65,092.78 and 15,310.73 is: 22,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,388.67 : 65,092.78 = 15,310.73 : x
  2. Step 2: Convert to fraction form
    43,388.67/65,092.78 = 15,310.73/x
  3. Step 3: Cross multiply
    43,388.67x = 65,092.78 × 15,310.73
  4. Step 4: Simplify right side
    43,388.67x = 996,618,161.40
  5. Step 5: Solve for x
    x = 996,618,161.40/43,388.67
  6. Step 6: Final answer
    x = 22,969.55

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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.