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Finding the Fourth Proportional to 22,262.52, 30,725.10 and 12,831.12

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Solution

The fourth proportional to 22,262.52, 30,725.10 and 12,831.12 is: 17,708.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,262.52 : 30,725.10 = 12,831.12 : x
  2. Step 2: Convert to fraction form
    22,262.52/30,725.10 = 12,831.12/x
  3. Step 3: Cross multiply
    22,262.52x = 30,725.10 × 12,831.12
  4. Step 4: Simplify right side
    22,262.52x = 394,237,445.11
  5. Step 5: Solve for x
    x = 394,237,445.11/22,262.52
  6. Step 6: Final answer
    x = 17,708.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.