Home / 20,982.87-31,471.61-6,193.35

Finding the Fourth Proportional to 20,982.87, 31,471.61 and 6,193.35

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Solution

The fourth proportional to 20,982.87, 31,471.61 and 6,193.35 is: 9,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,982.87 : 31,471.61 = 6,193.35 : x
  2. Step 2: Convert to fraction form
    20,982.87/31,471.61 = 6,193.35/x
  3. Step 3: Cross multiply
    20,982.87x = 31,471.61 × 6,193.35
  4. Step 4: Simplify right side
    20,982.87x = 194,914,664.83
  5. Step 5: Solve for x
    x = 194,914,664.83/20,982.87
  6. Step 6: Final answer
    x = 9,289.23

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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.