Home / 21,057.44-31,605.28-11,204.96

Finding the Fourth Proportional to 21,057.44, 31,605.28 and 11,204.96

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Solution

The fourth proportional to 21,057.44, 31,605.28 and 11,204.96 is: 16,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,057.44 : 31,605.28 = 11,204.96 : x
  2. Step 2: Convert to fraction form
    21,057.44/31,605.28 = 11,204.96/x
  3. Step 3: Cross multiply
    21,057.44x = 31,605.28 × 11,204.96
  4. Step 4: Simplify right side
    21,057.44x = 354,135,898.19
  5. Step 5: Solve for x
    x = 354,135,898.19/21,057.44
  6. Step 6: Final answer
    x = 16,817.61

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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.