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Finding the Fourth Proportional to 26,625, 39,936.42 and 7,904.28

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Solution

The fourth proportional to 26,625, 39,936.42 and 7,904.28 is: 11,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,625 : 39,936.42 = 7,904.28 : x
  2. Step 2: Convert to fraction form
    26,625/39,936.42 = 7,904.28/x
  3. Step 3: Cross multiply
    26,625x = 39,936.42 × 7,904.28
  4. Step 4: Simplify right side
    26,625x = 315,668,645.88
  5. Step 5: Solve for x
    x = 315,668,645.88/26,625
  6. Step 6: Final answer
    x = 11,856.10

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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.