Home / 27,977.97-38,608.41-15,231.18

Finding the Fourth Proportional to 27,977.97, 38,608.41 and 15,231.18

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Solution

The fourth proportional to 27,977.97, 38,608.41 and 15,231.18 is: 21,018.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,977.97 : 38,608.41 = 15,231.18 : x
  2. Step 2: Convert to fraction form
    27,977.97/38,608.41 = 15,231.18/x
  3. Step 3: Cross multiply
    27,977.97x = 38,608.41 × 15,231.18
  4. Step 4: Simplify right side
    27,977.97x = 588,051,642.22
  5. Step 5: Solve for x
    x = 588,051,642.22/27,977.97
  6. Step 6: Final answer
    x = 21,018.38

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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.