Home / 36,138.53-49,872.56-20,222.64

Finding the Fourth Proportional to 36,138.53, 49,872.56 and 20,222.64

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Solution

The fourth proportional to 36,138.53, 49,872.56 and 20,222.64 is: 27,908.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,138.53 : 49,872.56 = 20,222.64 : x
  2. Step 2: Convert to fraction form
    36,138.53/49,872.56 = 20,222.64/x
  3. Step 3: Cross multiply
    36,138.53x = 49,872.56 × 20,222.64
  4. Step 4: Simplify right side
    36,138.53x = 1,008,554,725.65
  5. Step 5: Solve for x
    x = 1,008,554,725.65/36,138.53
  6. Step 6: Final answer
    x = 27,908.02

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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.