Home / 21,233.57-31,846.17-20,179.85

Finding the Fourth Proportional to 21,233.57, 31,846.17 and 20,179.85

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Solution

The fourth proportional to 21,233.57, 31,846.17 and 20,179.85 is: 30,265.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,233.57 : 31,846.17 = 20,179.85 : x
  2. Step 2: Convert to fraction form
    21,233.57/31,846.17 = 20,179.85/x
  3. Step 3: Cross multiply
    21,233.57x = 31,846.17 × 20,179.85
  4. Step 4: Simplify right side
    21,233.57x = 642,650,933.67
  5. Step 5: Solve for x
    x = 642,650,933.67/21,233.57
  6. Step 6: Final answer
    x = 30,265.80

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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.