Home / 27,772.96-38,326.65-15,197.68

Finding the Fourth Proportional to 27,772.96, 38,326.65 and 15,197.68

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Solution

The fourth proportional to 27,772.96, 38,326.65 and 15,197.68 is: 20,972.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.96 : 38,326.65 = 15,197.68 : x
  2. Step 2: Convert to fraction form
    27,772.96/38,326.65 = 15,197.68/x
  3. Step 3: Cross multiply
    27,772.96x = 38,326.65 × 15,197.68
  4. Step 4: Simplify right side
    27,772.96x = 582,476,162.17
  5. Step 5: Solve for x
    x = 582,476,162.17/27,772.96
  6. Step 6: Final answer
    x = 20,972.78

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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.