Home / 25,857.15-38,791.79-8,326.32

Finding the Fourth Proportional to 25,857.15, 38,791.79 and 8,326.32

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Solution

The fourth proportional to 25,857.15, 38,791.79 and 8,326.32 is: 12,491.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,857.15 : 38,791.79 = 8,326.32 : x
  2. Step 2: Convert to fraction form
    25,857.15/38,791.79 = 8,326.32/x
  3. Step 3: Cross multiply
    25,857.15x = 38,791.79 × 8,326.32
  4. Step 4: Simplify right side
    25,857.15x = 322,992,856.91
  5. Step 5: Solve for x
    x = 322,992,856.91/25,857.15
  6. Step 6: Final answer
    x = 12,491.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.