Home / 33,108-49,661.60-13,386.40

Finding the Fourth Proportional to 33,108, 49,661.60 and 13,386.40

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Solution

The fourth proportional to 33,108, 49,661.60 and 13,386.40 is: 20,079.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,108 : 49,661.60 = 13,386.40 : x
  2. Step 2: Convert to fraction form
    33,108/49,661.60 = 13,386.40/x
  3. Step 3: Cross multiply
    33,108x = 49,661.60 × 13,386.40
  4. Step 4: Simplify right side
    33,108x = 664,790,042.24
  5. Step 5: Solve for x
    x = 664,790,042.24/33,108
  6. Step 6: Final answer
    x = 20,079.44

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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.