Home / 26,791.08-40,168.89-11,979.60

Finding the Fourth Proportional to 26,791.08, 40,168.89 and 11,979.60

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Solution

The fourth proportional to 26,791.08, 40,168.89 and 11,979.60 is: 17,961.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,791.08 : 40,168.89 = 11,979.60 : x
  2. Step 2: Convert to fraction form
    26,791.08/40,168.89 = 11,979.60/x
  3. Step 3: Cross multiply
    26,791.08x = 40,168.89 × 11,979.60
  4. Step 4: Simplify right side
    26,791.08x = 481,207,234.64
  5. Step 5: Solve for x
    x = 481,207,234.64/26,791.08
  6. Step 6: Final answer
    x = 17,961.47

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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.