Home / 20,579.82-30,871.17-5,788.68

Finding the Fourth Proportional to 20,579.82, 30,871.17 and 5,788.68

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Solution

The fourth proportional to 20,579.82, 30,871.17 and 5,788.68 is: 8,683.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,579.82 : 30,871.17 = 5,788.68 : x
  2. Step 2: Convert to fraction form
    20,579.82/30,871.17 = 5,788.68/x
  3. Step 3: Cross multiply
    20,579.82x = 30,871.17 × 5,788.68
  4. Step 4: Simplify right side
    20,579.82x = 178,703,324.36
  5. Step 5: Solve for x
    x = 178,703,324.36/20,579.82
  6. Step 6: Final answer
    x = 8,683.43

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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.