Home / 38,171.62-52,675.77-21,175.78

Finding the Fourth Proportional to 38,171.62, 52,675.77 and 21,175.78

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Solution

The fourth proportional to 38,171.62, 52,675.77 and 21,175.78 is: 29,221.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,171.62 : 52,675.77 = 21,175.78 : x
  2. Step 2: Convert to fraction form
    38,171.62/52,675.77 = 21,175.78/x
  3. Step 3: Cross multiply
    38,171.62x = 52,675.77 × 21,175.78
  4. Step 4: Simplify right side
    38,171.62x = 1,115,450,516.85
  5. Step 5: Solve for x
    x = 1,115,450,516.85/38,171.62
  6. Step 6: Final answer
    x = 29,221.99

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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.