Home / 20,759.84-31,143.18-6,723.41

Finding the Fourth Proportional to 20,759.84, 31,143.18 and 6,723.41

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Solution

The fourth proportional to 20,759.84, 31,143.18 and 6,723.41 is: 10,086.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.84 : 31,143.18 = 6,723.41 : x
  2. Step 2: Convert to fraction form
    20,759.84/31,143.18 = 6,723.41/x
  3. Step 3: Cross multiply
    20,759.84x = 31,143.18 × 6,723.41
  4. Step 4: Simplify right side
    20,759.84x = 209,388,237.34
  5. Step 5: Solve for x
    x = 209,388,237.34/20,759.84
  6. Step 6: Final answer
    x = 10,086.21

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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.