Home / 36,213.78-49,974.12-20,081.15

Finding the Fourth Proportional to 36,213.78, 49,974.12 and 20,081.15

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Solution

The fourth proportional to 36,213.78, 49,974.12 and 20,081.15 is: 27,711.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,213.78 : 49,974.12 = 20,081.15 : x
  2. Step 2: Convert to fraction form
    36,213.78/49,974.12 = 20,081.15/x
  3. Step 3: Cross multiply
    36,213.78x = 49,974.12 × 20,081.15
  4. Step 4: Simplify right side
    36,213.78x = 1,003,537,799.84
  5. Step 5: Solve for x
    x = 1,003,537,799.84/36,213.78
  6. Step 6: Final answer
    x = 27,711.49

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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.