Home / 36,039.06-54,093.15-20,469.78

Finding the Fourth Proportional to 36,039.06, 54,093.15 and 20,469.78

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Solution

The fourth proportional to 36,039.06, 54,093.15 and 20,469.78 is: 30,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,039.06 : 54,093.15 = 20,469.78 : x
  2. Step 2: Convert to fraction form
    36,039.06/54,093.15 = 20,469.78/x
  3. Step 3: Cross multiply
    36,039.06x = 54,093.15 × 20,469.78
  4. Step 4: Simplify right side
    36,039.06x = 1,107,274,880.01
  5. Step 5: Solve for x
    x = 1,107,274,880.01/36,039.06
  6. Step 6: Final answer
    x = 30,724.30

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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.