Home / 26,771.78-40,141.46-11,977.94

Finding the Fourth Proportional to 26,771.78, 40,141.46 and 11,977.94

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Solution

The fourth proportional to 26,771.78, 40,141.46 and 11,977.94 is: 17,959.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,771.78 : 40,141.46 = 11,977.94 : x
  2. Step 2: Convert to fraction form
    26,771.78/40,141.46 = 11,977.94/x
  3. Step 3: Cross multiply
    26,771.78x = 40,141.46 × 11,977.94
  4. Step 4: Simplify right side
    26,771.78x = 480,811,738.80
  5. Step 5: Solve for x
    x = 480,811,738.80/26,771.78
  6. Step 6: Final answer
    x = 17,959.65

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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.