Home / 26,199.93-36,087.03-20,138.58

Finding the Fourth Proportional to 26,199.93, 36,087.03 and 20,138.58

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Solution

The fourth proportional to 26,199.93, 36,087.03 and 20,138.58 is: 27,738.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,199.93 : 36,087.03 = 20,138.58 : x
  2. Step 2: Convert to fraction form
    26,199.93/36,087.03 = 20,138.58/x
  3. Step 3: Cross multiply
    26,199.93x = 36,087.03 × 20,138.58
  4. Step 4: Simplify right side
    26,199.93x = 726,741,540.62
  5. Step 5: Solve for x
    x = 726,741,540.62/26,199.93
  6. Step 6: Final answer
    x = 27,738.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.