Home / 19,831.96-29,747.13-8,144.88

Finding the Fourth Proportional to 19,831.96, 29,747.13 and 8,144.88

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Solution

The fourth proportional to 19,831.96, 29,747.13 and 8,144.88 is: 12,216.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,831.96 : 29,747.13 = 8,144.88 : x
  2. Step 2: Convert to fraction form
    19,831.96/29,747.13 = 8,144.88/x
  3. Step 3: Cross multiply
    19,831.96x = 29,747.13 × 8,144.88
  4. Step 4: Simplify right side
    19,831.96x = 242,286,804.19
  5. Step 5: Solve for x
    x = 242,286,804.19/19,831.96
  6. Step 6: Final answer
    x = 12,216.99

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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.