Home / 27,696.27-38,221.70-15,761.33

Finding the Fourth Proportional to 27,696.27, 38,221.70 and 15,761.33

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Solution

The fourth proportional to 27,696.27, 38,221.70 and 15,761.33 is: 21,751.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,696.27 : 38,221.70 = 15,761.33 : x
  2. Step 2: Convert to fraction form
    27,696.27/38,221.70 = 15,761.33/x
  3. Step 3: Cross multiply
    27,696.27x = 38,221.70 × 15,761.33
  4. Step 4: Simplify right side
    27,696.27x = 602,424,556.95
  5. Step 5: Solve for x
    x = 602,424,556.95/27,696.27
  6. Step 6: Final answer
    x = 21,751.11

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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.