Home / 20,578.82-30,855.27-13,551.26

Finding the Fourth Proportional to 20,578.82, 30,855.27 and 13,551.26

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Solution

The fourth proportional to 20,578.82, 30,855.27 and 13,551.26 is: 20,318.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,578.82 : 30,855.27 = 13,551.26 : x
  2. Step 2: Convert to fraction form
    20,578.82/30,855.27 = 13,551.26/x
  3. Step 3: Cross multiply
    20,578.82x = 30,855.27 × 13,551.26
  4. Step 4: Simplify right side
    20,578.82x = 418,127,786.14
  5. Step 5: Solve for x
    x = 418,127,786.14/20,578.82
  6. Step 6: Final answer
    x = 20,318.36

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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.