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Finding the Fourth Proportional to 26,885, 37,101.30 and 15,109

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Solution

The fourth proportional to 26,885, 37,101.30 and 15,109 is: 20,850.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,885 : 37,101.30 = 15,109 : x
  2. Step 2: Convert to fraction form
    26,885/37,101.30 = 15,109/x
  3. Step 3: Cross multiply
    26,885x = 37,101.30 × 15,109
  4. Step 4: Simplify right side
    26,885x = 560,563,541.70
  5. Step 5: Solve for x
    x = 560,563,541.70/26,885
  6. Step 6: Final answer
    x = 20,850.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.