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Finding the Fourth Proportional to 43,938, 65,908.11 and 15,860.46

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Solution

The fourth proportional to 43,938, 65,908.11 and 15,860.46 is: 23,791.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,938 : 65,908.11 = 15,860.46 : x
  2. Step 2: Convert to fraction form
    43,938/65,908.11 = 15,860.46/x
  3. Step 3: Cross multiply
    43,938x = 65,908.11 × 15,860.46
  4. Step 4: Simplify right side
    43,938x = 1,045,332,942.33
  5. Step 5: Solve for x
    x = 1,045,332,942.33/43,938
  6. Step 6: Final answer
    x = 23,791.09

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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.