Home / 19,644.54-29,443.38-13,689.17

Finding the Fourth Proportional to 19,644.54, 29,443.38 and 13,689.17

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Solution

The fourth proportional to 19,644.54, 29,443.38 and 13,689.17 is: 20,517.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,644.54 : 29,443.38 = 13,689.17 : x
  2. Step 2: Convert to fraction form
    19,644.54/29,443.38 = 13,689.17/x
  3. Step 3: Cross multiply
    19,644.54x = 29,443.38 × 13,689.17
  4. Step 4: Simplify right side
    19,644.54x = 403,055,434.19
  5. Step 5: Solve for x
    x = 403,055,434.19/19,644.54
  6. Step 6: Final answer
    x = 20,517.43

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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.