Home / 17,161.31-25,693.43-10,905.81

Finding the Fourth Proportional to 17,161.31, 25,693.43 and 10,905.81

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Solution

The fourth proportional to 17,161.31, 25,693.43 and 10,905.81 is: 16,327.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,161.31 : 25,693.43 = 10,905.81 : x
  2. Step 2: Convert to fraction form
    17,161.31/25,693.43 = 10,905.81/x
  3. Step 3: Cross multiply
    17,161.31x = 25,693.43 × 10,905.81
  4. Step 4: Simplify right side
    17,161.31x = 280,207,611.30
  5. Step 5: Solve for x
    x = 280,207,611.30/17,161.31
  6. Step 6: Final answer
    x = 16,327.87

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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.