Home / 26,839.78-40,238.48-16,958.20

Finding the Fourth Proportional to 26,839.78, 40,238.48 and 16,958.20

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Solution

The fourth proportional to 26,839.78, 40,238.48 and 16,958.20 is: 25,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,839.78 : 40,238.48 = 16,958.20 : x
  2. Step 2: Convert to fraction form
    26,839.78/40,238.48 = 16,958.20/x
  3. Step 3: Cross multiply
    26,839.78x = 40,238.48 × 16,958.20
  4. Step 4: Simplify right side
    26,839.78x = 682,372,191.54
  5. Step 5: Solve for x
    x = 682,372,191.54/26,839.78
  6. Step 6: Final answer
    x = 25,423.91

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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.