Home / 27,772.88-38,326.68-15,198.32

Finding the Fourth Proportional to 27,772.88, 38,326.68 and 15,198.32

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Solution

The fourth proportional to 27,772.88, 38,326.68 and 15,198.32 is: 20,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,772.88 : 38,326.68 = 15,198.32 : x
  2. Step 2: Convert to fraction form
    27,772.88/38,326.68 = 15,198.32/x
  3. Step 3: Cross multiply
    27,772.88x = 38,326.68 × 15,198.32
  4. Step 4: Simplify right side
    27,772.88x = 582,501,147.18
  5. Step 5: Solve for x
    x = 582,501,147.18/27,772.88
  6. Step 6: Final answer
    x = 20,973.74

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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.