Home / 27,696.44-38,221.13-15,121.19

Finding the Fourth Proportional to 27,696.44, 38,221.13 and 15,121.19

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Solution

The fourth proportional to 27,696.44, 38,221.13 and 15,121.19 is: 20,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.44 : 38,221.13 = 15,121.19 : x
  2. Step 2: Convert to fraction form
    27,696.44/38,221.13 = 15,121.19/x
  3. Step 3: Cross multiply
    27,696.44x = 38,221.13 × 15,121.19
  4. Step 4: Simplify right side
    27,696.44x = 577,949,102.10
  5. Step 5: Solve for x
    x = 577,949,102.10/27,696.44
  6. Step 6: Final answer
    x = 20,867.27

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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.