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Finding the Fourth Proportional to 43,986, 65,979 and 19,362

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Solution

The fourth proportional to 43,986, 65,979 and 19,362 is: 29,043

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,986 : 65,979 = 19,362 : x
  2. Step 2: Convert to fraction form
    43,986/65,979 = 19,362/x
  3. Step 3: Cross multiply
    43,986x = 65,979 × 19,362
  4. Step 4: Simplify right side
    43,986x = 1,277,485,398
  5. Step 5: Solve for x
    x = 1,277,485,398/43,986
  6. Step 6: Final answer
    x = 29,043

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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.