Home / 27,863.28-38,449.80-15,287.04

Finding the Fourth Proportional to 27,863.28, 38,449.80 and 15,287.04

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Solution

The fourth proportional to 27,863.28, 38,449.80 and 15,287.04 is: 21,095.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.28 : 38,449.80 = 15,287.04 : x
  2. Step 2: Convert to fraction form
    27,863.28/38,449.80 = 15,287.04/x
  3. Step 3: Cross multiply
    27,863.28x = 38,449.80 × 15,287.04
  4. Step 4: Simplify right side
    27,863.28x = 587,783,630.59
  5. Step 5: Solve for x
    x = 587,783,630.59/27,863.28
  6. Step 6: Final answer
    x = 21,095.28

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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.