Home / 27,721.62-38,257.41-17,111.43

Finding the Fourth Proportional to 27,721.62, 38,257.41 and 17,111.43

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Solution

The fourth proportional to 27,721.62, 38,257.41 and 17,111.43 is: 23,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.62 : 38,257.41 = 17,111.43 : x
  2. Step 2: Convert to fraction form
    27,721.62/38,257.41 = 17,111.43/x
  3. Step 3: Cross multiply
    27,721.62x = 38,257.41 × 17,111.43
  4. Step 4: Simplify right side
    27,721.62x = 654,638,993.20
  5. Step 5: Solve for x
    x = 654,638,993.20/27,721.62
  6. Step 6: Final answer
    x = 23,614.75

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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.