Home / 20,464.70-30,647.73-11,672.96

Finding the Fourth Proportional to 20,464.70, 30,647.73 and 11,672.96

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Solution

The fourth proportional to 20,464.70, 30,647.73 and 11,672.96 is: 17,481.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,464.70 : 30,647.73 = 11,672.96 : x
  2. Step 2: Convert to fraction form
    20,464.70/30,647.73 = 11,672.96/x
  3. Step 3: Cross multiply
    20,464.70x = 30,647.73 × 11,672.96
  4. Step 4: Simplify right side
    20,464.70x = 357,749,726.38
  5. Step 5: Solve for x
    x = 357,749,726.38/20,464.70
  6. Step 6: Final answer
    x = 17,481.31

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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.