Home / 13,351.28-20,025.17-3,491.31

Finding the Fourth Proportional to 13,351.28, 20,025.17 and 3,491.31

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Solution

The fourth proportional to 13,351.28, 20,025.17 and 3,491.31 is: 5,236.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,351.28 : 20,025.17 = 3,491.31 : x
  2. Step 2: Convert to fraction form
    13,351.28/20,025.17 = 3,491.31/x
  3. Step 3: Cross multiply
    13,351.28x = 20,025.17 × 3,491.31
  4. Step 4: Simplify right side
    13,351.28x = 69,914,166.64
  5. Step 5: Solve for x
    x = 69,914,166.64/13,351.28
  6. Step 6: Final answer
    x = 5,236.52

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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.