Home / 19,443.12-29,120.91-13,625.70

Finding the Fourth Proportional to 19,443.12, 29,120.91 and 13,625.70

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Solution

The fourth proportional to 19,443.12, 29,120.91 and 13,625.70 is: 20,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,443.12 : 29,120.91 = 13,625.70 : x
  2. Step 2: Convert to fraction form
    19,443.12/29,120.91 = 13,625.70/x
  3. Step 3: Cross multiply
    19,443.12x = 29,120.91 × 13,625.70
  4. Step 4: Simplify right side
    19,443.12x = 396,792,783.39
  5. Step 5: Solve for x
    x = 396,792,783.39/19,443.12
  6. Step 6: Final answer
    x = 20,407.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.