Home / 27,736.27-38,266.71-15,791.15

Finding the Fourth Proportional to 27,736.27, 38,266.71 and 15,791.15

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Solution

The fourth proportional to 27,736.27, 38,266.71 and 15,791.15 is: 21,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,736.27 : 38,266.71 = 15,791.15 : x
  2. Step 2: Convert to fraction form
    27,736.27/38,266.71 = 15,791.15/x
  3. Step 3: Cross multiply
    27,736.27x = 38,266.71 × 15,791.15
  4. Step 4: Simplify right side
    27,736.27x = 604,275,394.07
  5. Step 5: Solve for x
    x = 604,275,394.07/27,736.27
  6. Step 6: Final answer
    x = 21,786.47

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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.