Home / 25,976.94-38,992.97-21,105.41

Finding the Fourth Proportional to 25,976.94, 38,992.97 and 21,105.41

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Solution

The fourth proportional to 25,976.94, 38,992.97 and 21,105.41 is: 31,680.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,976.94 : 38,992.97 = 21,105.41 : x
  2. Step 2: Convert to fraction form
    25,976.94/38,992.97 = 21,105.41/x
  3. Step 3: Cross multiply
    25,976.94x = 38,992.97 × 21,105.41
  4. Step 4: Simplify right side
    25,976.94x = 822,962,318.48
  5. Step 5: Solve for x
    x = 822,962,318.48/25,976.94
  6. Step 6: Final answer
    x = 31,680.50

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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.