Home / 28,831.71-43,249.39-12,188.64

Finding the Fourth Proportional to 28,831.71, 43,249.39 and 12,188.64

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Solution

The fourth proportional to 28,831.71, 43,249.39 and 12,188.64 is: 18,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.71 : 43,249.39 = 12,188.64 : x
  2. Step 2: Convert to fraction form
    28,831.71/43,249.39 = 12,188.64/x
  3. Step 3: Cross multiply
    28,831.71x = 43,249.39 × 12,188.64
  4. Step 4: Simplify right side
    28,831.71x = 527,151,183.99
  5. Step 5: Solve for x
    x = 527,151,183.99/28,831.71
  6. Step 6: Final answer
    x = 18,283.73

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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.