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Finding the Fourth Proportional to 39,249.51, 58,866 and 12,948.09

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Solution

The fourth proportional to 39,249.51, 58,866 and 12,948.09 is: 19,419.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,249.51 : 58,866 = 12,948.09 : x
  2. Step 2: Convert to fraction form
    39,249.51/58,866 = 12,948.09/x
  3. Step 3: Cross multiply
    39,249.51x = 58,866 × 12,948.09
  4. Step 4: Simplify right side
    39,249.51x = 762,202,265.94
  5. Step 5: Solve for x
    x = 762,202,265.94/39,249.51
  6. Step 6: Final answer
    x = 19,419.41

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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.