Home / 20,553.33-30,838.20-12,237.27

Finding the Fourth Proportional to 20,553.33, 30,838.20 and 12,237.27

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Solution

The fourth proportional to 20,553.33, 30,838.20 and 12,237.27 is: 18,360.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.33 : 30,838.20 = 12,237.27 : x
  2. Step 2: Convert to fraction form
    20,553.33/30,838.20 = 12,237.27/x
  3. Step 3: Cross multiply
    20,553.33x = 30,838.20 × 12,237.27
  4. Step 4: Simplify right side
    20,553.33x = 377,375,379.71
  5. Step 5: Solve for x
    x = 377,375,379.71/20,553.33
  6. Step 6: Final answer
    x = 18,360.79

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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.