Home / 21,725.34-29,982.12-13,226.10

Finding the Fourth Proportional to 21,725.34, 29,982.12 and 13,226.10

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Solution

The fourth proportional to 21,725.34, 29,982.12 and 13,226.10 is: 18,252.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,725.34 : 29,982.12 = 13,226.10 : x
  2. Step 2: Convert to fraction form
    21,725.34/29,982.12 = 13,226.10/x
  3. Step 3: Cross multiply
    21,725.34x = 29,982.12 × 13,226.10
  4. Step 4: Simplify right side
    21,725.34x = 396,546,517.33
  5. Step 5: Solve for x
    x = 396,546,517.33/21,725.34
  6. Step 6: Final answer
    x = 18,252.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.