Home / 27,862.08-38,449.44-15,286.72

Finding the Fourth Proportional to 27,862.08, 38,449.44 and 15,286.72

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Solution

The fourth proportional to 27,862.08, 38,449.44 and 15,286.72 is: 21,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,862.08 : 38,449.44 = 15,286.72 : x
  2. Step 2: Convert to fraction form
    27,862.08/38,449.44 = 15,286.72/x
  3. Step 3: Cross multiply
    27,862.08x = 38,449.44 × 15,286.72
  4. Step 4: Simplify right side
    27,862.08x = 587,765,823.44
  5. Step 5: Solve for x
    x = 587,765,823.44/27,862.08
  6. Step 6: Final answer
    x = 21,095.55

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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.