Home / 19,644.44-29,443.25-13,689.09

Finding the Fourth Proportional to 19,644.44, 29,443.25 and 13,689.09

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Solution

The fourth proportional to 19,644.44, 29,443.25 and 13,689.09 is: 20,517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.44 : 29,443.25 = 13,689.09 : x
  2. Step 2: Convert to fraction form
    19,644.44/29,443.25 = 13,689.09/x
  3. Step 3: Cross multiply
    19,644.44x = 29,443.25 × 13,689.09
  4. Step 4: Simplify right side
    19,644.44x = 403,051,230.70
  5. Step 5: Solve for x
    x = 403,051,230.70/19,644.44
  6. Step 6: Final answer
    x = 20,517.32

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1.5x scale

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.