Home / 27,871.12-38,480.16-17,272

Finding the Fourth Proportional to 27,871.12, 38,480.16 and 17,272

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Solution

The fourth proportional to 27,871.12, 38,480.16 and 17,272 is: 23,846.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.12 : 38,480.16 = 17,272 : x
  2. Step 2: Convert to fraction form
    27,871.12/38,480.16 = 17,272/x
  3. Step 3: Cross multiply
    27,871.12x = 38,480.16 × 17,272
  4. Step 4: Simplify right side
    27,871.12x = 664,629,323.52
  5. Step 5: Solve for x
    x = 664,629,323.52/27,871.12
  6. Step 6: Final answer
    x = 23,846.52

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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.