Home / 28,831.86-43,253.19-9,115.38

Finding the Fourth Proportional to 28,831.86, 43,253.19 and 9,115.38

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Solution

The fourth proportional to 28,831.86, 43,253.19 and 9,115.38 is: 13,674.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,831.86 : 43,253.19 = 9,115.38 : x
  2. Step 2: Convert to fraction form
    28,831.86/43,253.19 = 9,115.38/x
  3. Step 3: Cross multiply
    28,831.86x = 43,253.19 × 9,115.38
  4. Step 4: Simplify right side
    28,831.86x = 394,269,263.06
  5. Step 5: Solve for x
    x = 394,269,263.06/28,831.86
  6. Step 6: Final answer
    x = 13,674.78

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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.