Home / 20,722.80-31,084.92-6,682.80

Finding the Fourth Proportional to 20,722.80, 31,084.92 and 6,682.80

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Solution

The fourth proportional to 20,722.80, 31,084.92 and 6,682.80 is: 10,024.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.80 : 31,084.92 = 6,682.80 : x
  2. Step 2: Convert to fraction form
    20,722.80/31,084.92 = 6,682.80/x
  3. Step 3: Cross multiply
    20,722.80x = 31,084.92 × 6,682.80
  4. Step 4: Simplify right side
    20,722.80x = 207,734,303.38
  5. Step 5: Solve for x
    x = 207,734,303.38/20,722.80
  6. Step 6: Final answer
    x = 10,024.43

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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.