Home / 20,237.89-27,923.64-12,167.86

Finding the Fourth Proportional to 20,237.89, 27,923.64 and 12,167.86

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Solution

The fourth proportional to 20,237.89, 27,923.64 and 12,167.86 is: 16,788.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.89 : 27,923.64 = 12,167.86 : x
  2. Step 2: Convert to fraction form
    20,237.89/27,923.64 = 12,167.86/x
  3. Step 3: Cross multiply
    20,237.89x = 27,923.64 × 12,167.86
  4. Step 4: Simplify right side
    20,237.89x = 339,770,942.21
  5. Step 5: Solve for x
    x = 339,770,942.21/20,237.89
  6. Step 6: Final answer
    x = 16,788.85

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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.