Home / 27,863.34-38,449.53-15,288.90

Finding the Fourth Proportional to 27,863.34, 38,449.53 and 15,288.90

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Solution

The fourth proportional to 27,863.34, 38,449.53 and 15,288.90 is: 21,097.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,863.34 : 38,449.53 = 15,288.90 : x
  2. Step 2: Convert to fraction form
    27,863.34/38,449.53 = 15,288.90/x
  3. Step 3: Cross multiply
    27,863.34x = 38,449.53 × 15,288.90
  4. Step 4: Simplify right side
    27,863.34x = 587,851,019.22
  5. Step 5: Solve for x
    x = 587,851,019.22/27,863.34
  6. Step 6: Final answer
    x = 21,097.65

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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.