Home / 20,236.89-27,922.26-12,166.86

Finding the Fourth Proportional to 20,236.89, 27,922.26 and 12,166.86

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Solution

The fourth proportional to 20,236.89, 27,922.26 and 12,166.86 is: 16,787.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,236.89 : 27,922.26 = 12,166.86 : x
  2. Step 2: Convert to fraction form
    20,236.89/27,922.26 = 12,166.86/x
  3. Step 3: Cross multiply
    20,236.89x = 27,922.26 × 12,166.86
  4. Step 4: Simplify right side
    20,236.89x = 339,726,228.30
  5. Step 5: Solve for x
    x = 339,726,228.30/20,236.89
  6. Step 6: Final answer
    x = 16,787.47

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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.