Home / 19,982.28-29,967.20-6,831.58

Finding the Fourth Proportional to 19,982.28, 29,967.20 and 6,831.58

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Solution

The fourth proportional to 19,982.28, 29,967.20 and 6,831.58 is: 10,245.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,982.28 : 29,967.20 = 6,831.58 : x
  2. Step 2: Convert to fraction form
    19,982.28/29,967.20 = 6,831.58/x
  3. Step 3: Cross multiply
    19,982.28x = 29,967.20 × 6,831.58
  4. Step 4: Simplify right side
    19,982.28x = 204,723,324.18
  5. Step 5: Solve for x
    x = 204,723,324.18/19,982.28
  6. Step 6: Final answer
    x = 10,245.24

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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.