Home / 26,788.86-40,170.60-11,997.90

Finding the Fourth Proportional to 26,788.86, 40,170.60 and 11,997.90

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Solution

The fourth proportional to 26,788.86, 40,170.60 and 11,997.90 is: 17,991.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,788.86 : 40,170.60 = 11,997.90 : x
  2. Step 2: Convert to fraction form
    26,788.86/40,170.60 = 11,997.90/x
  3. Step 3: Cross multiply
    26,788.86x = 40,170.60 × 11,997.90
  4. Step 4: Simplify right side
    26,788.86x = 481,962,841.74
  5. Step 5: Solve for x
    x = 481,962,841.74/26,788.86
  6. Step 6: Final answer
    x = 17,991.17

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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.