Home / 20,845.35-28,773.26-12,346.95

Finding the Fourth Proportional to 20,845.35, 28,773.26 and 12,346.95

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Solution

The fourth proportional to 20,845.35, 28,773.26 and 12,346.95 is: 17,042.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,845.35 : 28,773.26 = 12,346.95 : x
  2. Step 2: Convert to fraction form
    20,845.35/28,773.26 = 12,346.95/x
  3. Step 3: Cross multiply
    20,845.35x = 28,773.26 × 12,346.95
  4. Step 4: Simplify right side
    20,845.35x = 355,261,940.82
  5. Step 5: Solve for x
    x = 355,261,940.82/20,845.35
  6. Step 6: Final answer
    x = 17,042.74

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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.