Home / 22,040.43-30,431.62-13,553.96

Finding the Fourth Proportional to 22,040.43, 30,431.62 and 13,553.96

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Solution

The fourth proportional to 22,040.43, 30,431.62 and 13,553.96 is: 18,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,040.43 : 30,431.62 = 13,553.96 : x
  2. Step 2: Convert to fraction form
    22,040.43/30,431.62 = 13,553.96/x
  3. Step 3: Cross multiply
    22,040.43x = 30,431.62 × 13,553.96
  4. Step 4: Simplify right side
    22,040.43x = 412,468,960.22
  5. Step 5: Solve for x
    x = 412,468,960.22/22,040.43
  6. Step 6: Final answer
    x = 18,714.20

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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.