Home / 25,979.82-38,997.29-21,108.26

Finding the Fourth Proportional to 25,979.82, 38,997.29 and 21,108.26

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Solution

The fourth proportional to 25,979.82, 38,997.29 and 21,108.26 is: 31,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.82 : 38,997.29 = 21,108.26 : x
  2. Step 2: Convert to fraction form
    25,979.82/38,997.29 = 21,108.26/x
  3. Step 3: Cross multiply
    25,979.82x = 38,997.29 × 21,108.26
  4. Step 4: Simplify right side
    25,979.82x = 823,164,936.62
  5. Step 5: Solve for x
    x = 823,164,936.62/25,979.82
  6. Step 6: Final answer
    x = 31,684.78

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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.