Home / 21,233.91-31,846.62-20,180.10

Finding the Fourth Proportional to 21,233.91, 31,846.62 and 20,180.10

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Solution

The fourth proportional to 21,233.91, 31,846.62 and 20,180.10 is: 30,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.91 : 31,846.62 = 20,180.10 : x
  2. Step 2: Convert to fraction form
    21,233.91/31,846.62 = 20,180.10/x
  3. Step 3: Cross multiply
    21,233.91x = 31,846.62 × 20,180.10
  4. Step 4: Simplify right side
    21,233.91x = 642,667,976.26
  5. Step 5: Solve for x
    x = 642,667,976.26/21,233.91
  6. Step 6: Final answer
    x = 30,266.12

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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.