Home / 20,116.62-27,760.82-11,618.63

Finding the Fourth Proportional to 20,116.62, 27,760.82 and 11,618.63

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Solution

The fourth proportional to 20,116.62, 27,760.82 and 11,618.63 is: 16,033.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.62 : 27,760.82 = 11,618.63 : x
  2. Step 2: Convert to fraction form
    20,116.62/27,760.82 = 11,618.63/x
  3. Step 3: Cross multiply
    20,116.62x = 27,760.82 × 11,618.63
  4. Step 4: Simplify right side
    20,116.62x = 322,542,499.18
  5. Step 5: Solve for x
    x = 322,542,499.18/20,116.62
  6. Step 6: Final answer
    x = 16,033.63

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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.