Home / 26,713.78-40,083.27-11,921.38

Finding the Fourth Proportional to 26,713.78, 40,083.27 and 11,921.38

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Solution

The fourth proportional to 26,713.78, 40,083.27 and 11,921.38 is: 17,887.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,713.78 : 40,083.27 = 11,921.38 : x
  2. Step 2: Convert to fraction form
    26,713.78/40,083.27 = 11,921.38/x
  3. Step 3: Cross multiply
    26,713.78x = 40,083.27 × 11,921.38
  4. Step 4: Simplify right side
    26,713.78x = 477,847,893.31
  5. Step 5: Solve for x
    x = 477,847,893.31/26,713.78
  6. Step 6: Final answer
    x = 17,887.69

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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.