Home / 27,871.97-38,463.32-15,935.54

Finding the Fourth Proportional to 27,871.97, 38,463.32 and 15,935.54

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Solution

The fourth proportional to 27,871.97, 38,463.32 and 15,935.54 is: 21,991.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,871.97 : 38,463.32 = 15,935.54 : x
  2. Step 2: Convert to fraction form
    27,871.97/38,463.32 = 15,935.54/x
  3. Step 3: Cross multiply
    27,871.97x = 38,463.32 × 15,935.54
  4. Step 4: Simplify right side
    27,871.97x = 612,933,621.92
  5. Step 5: Solve for x
    x = 612,933,621.92/27,871.97
  6. Step 6: Final answer
    x = 21,991.04

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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.