Home / 38,170.62-52,674.39-21,174.78

Finding the Fourth Proportional to 38,170.62, 52,674.39 and 21,174.78

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Solution

The fourth proportional to 38,170.62, 52,674.39 and 21,174.78 is: 29,220.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,170.62 : 52,674.39 = 21,174.78 : x
  2. Step 2: Convert to fraction form
    38,170.62/52,674.39 = 21,174.78/x
  3. Step 3: Cross multiply
    38,170.62x = 52,674.39 × 21,174.78
  4. Step 4: Simplify right side
    38,170.62x = 1,115,368,619.88
  5. Step 5: Solve for x
    x = 1,115,368,619.88/38,170.62
  6. Step 6: Final answer
    x = 29,220.61

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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.