Home / 20,792.36-28,702.89-13,249.04

Finding the Fourth Proportional to 20,792.36, 28,702.89 and 13,249.04

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Solution

The fourth proportional to 20,792.36, 28,702.89 and 13,249.04 is: 18,289.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,792.36 : 28,702.89 = 13,249.04 : x
  2. Step 2: Convert to fraction form
    20,792.36/28,702.89 = 13,249.04/x
  3. Step 3: Cross multiply
    20,792.36x = 28,702.89 × 13,249.04
  4. Step 4: Simplify right side
    20,792.36x = 380,285,594.21
  5. Step 5: Solve for x
    x = 380,285,594.21/20,792.36
  6. Step 6: Final answer
    x = 18,289.68

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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.