Home / 27,799.34-38,361.62-15,863.79

Finding the Fourth Proportional to 27,799.34, 38,361.62 and 15,863.79

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Solution

The fourth proportional to 27,799.34, 38,361.62 and 15,863.79 is: 21,891.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,799.34 : 38,361.62 = 15,863.79 : x
  2. Step 2: Convert to fraction form
    27,799.34/38,361.62 = 15,863.79/x
  3. Step 3: Cross multiply
    27,799.34x = 38,361.62 × 15,863.79
  4. Step 4: Simplify right side
    27,799.34x = 608,560,723.40
  5. Step 5: Solve for x
    x = 608,560,723.40/27,799.34
  6. Step 6: Final answer
    x = 21,891.19

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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.