Home / 27,662.88-38,177.96-15,399.52

Finding the Fourth Proportional to 27,662.88, 38,177.96 and 15,399.52

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Solution

The fourth proportional to 27,662.88, 38,177.96 and 15,399.52 is: 21,253.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,662.88 : 38,177.96 = 15,399.52 : x
  2. Step 2: Convert to fraction form
    27,662.88/38,177.96 = 15,399.52/x
  3. Step 3: Cross multiply
    27,662.88x = 38,177.96 × 15,399.52
  4. Step 4: Simplify right side
    27,662.88x = 587,922,258.58
  5. Step 5: Solve for x
    x = 587,922,258.58/27,662.88
  6. Step 6: Final answer
    x = 21,253.11

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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.