Home / 27,696.43-38,221.07-15,121.18

Finding the Fourth Proportional to 27,696.43, 38,221.07 and 15,121.18

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Solution

The fourth proportional to 27,696.43, 38,221.07 and 15,121.18 is: 20,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.43 : 38,221.07 = 15,121.18 : x
  2. Step 2: Convert to fraction form
    27,696.43/38,221.07 = 15,121.18/x
  3. Step 3: Cross multiply
    27,696.43x = 38,221.07 × 15,121.18
  4. Step 4: Simplify right side
    27,696.43x = 577,947,651.43
  5. Step 5: Solve for x
    x = 577,947,651.43/27,696.43
  6. Step 6: Final answer
    x = 20,867.22

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Half scale
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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.