Home / 20,175.50-27,842.30-11,677.62

Finding the Fourth Proportional to 20,175.50, 27,842.30 and 11,677.62

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Solution

The fourth proportional to 20,175.50, 27,842.30 and 11,677.62 is: 16,115.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,175.50 : 27,842.30 = 11,677.62 : x
  2. Step 2: Convert to fraction form
    20,175.50/27,842.30 = 11,677.62/x
  3. Step 3: Cross multiply
    20,175.50x = 27,842.30 × 11,677.62
  4. Step 4: Simplify right side
    20,175.50x = 325,131,799.33
  5. Step 5: Solve for x
    x = 325,131,799.33/20,175.50
  6. Step 6: Final answer
    x = 16,115.18

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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.