Home / 27,960.49-38,585.18-15,863.21

Finding the Fourth Proportional to 27,960.49, 38,585.18 and 15,863.21

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Solution

The fourth proportional to 27,960.49, 38,585.18 and 15,863.21 is: 21,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,960.49 : 38,585.18 = 15,863.21 : x
  2. Step 2: Convert to fraction form
    27,960.49/38,585.18 = 15,863.21/x
  3. Step 3: Cross multiply
    27,960.49x = 38,585.18 × 15,863.21
  4. Step 4: Simplify right side
    27,960.49x = 612,084,540.99
  5. Step 5: Solve for x
    x = 612,084,540.99/27,960.49
  6. Step 6: Final answer
    x = 21,891.06

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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.