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Finding the Fourth Proportional to 16,104, 22,204.80 and 15,107.70

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Solution

The fourth proportional to 16,104, 22,204.80 and 15,107.70 is: 20,831.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,104 : 22,204.80 = 15,107.70 : x
  2. Step 2: Convert to fraction form
    16,104/22,204.80 = 15,107.70/x
  3. Step 3: Cross multiply
    16,104x = 22,204.80 × 15,107.70
  4. Step 4: Simplify right side
    16,104x = 335,463,456.96
  5. Step 5: Solve for x
    x = 335,463,456.96/16,104
  6. Step 6: Final answer
    x = 20,831.06

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Why These Related Problems?

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