Home / 20,882.46-31,317.01-6,838.68

Finding the Fourth Proportional to 20,882.46, 31,317.01 and 6,838.68

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Solution

The fourth proportional to 20,882.46, 31,317.01 and 6,838.68 is: 10,255.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,882.46 : 31,317.01 = 6,838.68 : x
  2. Step 2: Convert to fraction form
    20,882.46/31,317.01 = 6,838.68/x
  3. Step 3: Cross multiply
    20,882.46x = 31,317.01 × 6,838.68
  4. Step 4: Simplify right side
    20,882.46x = 214,167,110.29
  5. Step 5: Solve for x
    x = 214,167,110.29/20,882.46
  6. Step 6: Final answer
    x = 10,255.84

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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.