Home / 19,276.38-28,945.96-11,927.66

Finding the Fourth Proportional to 19,276.38, 28,945.96 and 11,927.66

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Solution

The fourth proportional to 19,276.38, 28,945.96 and 11,927.66 is: 17,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,276.38 : 28,945.96 = 11,927.66 : x
  2. Step 2: Convert to fraction form
    19,276.38/28,945.96 = 11,927.66/x
  3. Step 3: Cross multiply
    19,276.38x = 28,945.96 × 11,927.66
  4. Step 4: Simplify right side
    19,276.38x = 345,257,394.70
  5. Step 5: Solve for x
    x = 345,257,394.70/19,276.38
  6. Step 6: Final answer
    x = 17,910.90

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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.