Home / 19,976.74-27,561.78-11,591.62

Finding the Fourth Proportional to 19,976.74, 27,561.78 and 11,591.62

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Solution

The fourth proportional to 19,976.74, 27,561.78 and 11,591.62 is: 15,992.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.74 : 27,561.78 = 11,591.62 : x
  2. Step 2: Convert to fraction form
    19,976.74/27,561.78 = 11,591.62/x
  3. Step 3: Cross multiply
    19,976.74x = 27,561.78 × 11,591.62
  4. Step 4: Simplify right side
    19,976.74x = 319,485,680.28
  5. Step 5: Solve for x
    x = 319,485,680.28/19,976.74
  6. Step 6: Final answer
    x = 15,992.88

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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.