Home / 23,993.12-33,109.08-13,920.78

Finding the Fourth Proportional to 23,993.12, 33,109.08 and 13,920.78

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Solution

The fourth proportional to 23,993.12, 33,109.08 and 13,920.78 is: 19,209.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,993.12 : 33,109.08 = 13,920.78 : x
  2. Step 2: Convert to fraction form
    23,993.12/33,109.08 = 13,920.78/x
  3. Step 3: Cross multiply
    23,993.12x = 33,109.08 × 13,920.78
  4. Step 4: Simplify right side
    23,993.12x = 460,904,218.68
  5. Step 5: Solve for x
    x = 460,904,218.68/23,993.12
  6. Step 6: Final answer
    x = 19,209.85

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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.