Home / 20,529.52-28,338-12,146

Finding the Fourth Proportional to 20,529.52, 28,338 and 12,146

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Solution

The fourth proportional to 20,529.52, 28,338 and 12,146 is: 16,765.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,529.52 : 28,338 = 12,146 : x
  2. Step 2: Convert to fraction form
    20,529.52/28,338 = 12,146/x
  3. Step 3: Cross multiply
    20,529.52x = 28,338 × 12,146
  4. Step 4: Simplify right side
    20,529.52x = 344,193,348
  5. Step 5: Solve for x
    x = 344,193,348/20,529.52
  6. Step 6: Final answer
    x = 16,765.78

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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.