Home / 26,105.64-39,163.40-8,580.48

Finding the Fourth Proportional to 26,105.64, 39,163.40 and 8,580.48

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Solution

The fourth proportional to 26,105.64, 39,163.40 and 8,580.48 is: 12,872.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,105.64 : 39,163.40 = 8,580.48 : x
  2. Step 2: Convert to fraction form
    26,105.64/39,163.40 = 8,580.48/x
  3. Step 3: Cross multiply
    26,105.64x = 39,163.40 × 8,580.48
  4. Step 4: Simplify right side
    26,105.64x = 336,040,770.43
  5. Step 5: Solve for x
    x = 336,040,770.43/26,105.64
  6. Step 6: Final answer
    x = 12,872.34

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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.