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Finding the Fourth Proportional to 26,571.86, 39,855.38 and 8,103.86

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Solution

The fourth proportional to 26,571.86, 39,855.38 and 8,103.86 is: 12,155.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,571.86 : 39,855.38 = 8,103.86 : x
  2. Step 2: Convert to fraction form
    26,571.86/39,855.38 = 8,103.86/x
  3. Step 3: Cross multiply
    26,571.86x = 39,855.38 × 8,103.86
  4. Step 4: Simplify right side
    26,571.86x = 322,982,419.77
  5. Step 5: Solve for x
    x = 322,982,419.77/26,571.86
  6. Step 6: Final answer
    x = 12,155.06

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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.