Home / 25,979.88-38,998.94-10,408.36

Finding the Fourth Proportional to 25,979.88, 38,998.94 and 10,408.36

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Solution

The fourth proportional to 25,979.88, 38,998.94 and 10,408.36 is: 15,624.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,979.88 : 38,998.94 = 10,408.36 : x
  2. Step 2: Convert to fraction form
    25,979.88/38,998.94 = 10,408.36/x
  3. Step 3: Cross multiply
    25,979.88x = 38,998.94 × 10,408.36
  4. Step 4: Simplify right side
    25,979.88x = 405,915,007.14
  5. Step 5: Solve for x
    x = 405,915,007.14/25,979.88
  6. Step 6: Final answer
    x = 15,624.21

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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.