Home / 13,944.20-20,911.31-5,057.29

Finding the Fourth Proportional to 13,944.20, 20,911.31 and 5,057.29

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Solution

The fourth proportional to 13,944.20, 20,911.31 and 5,057.29 is: 7,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944.20 : 20,911.31 = 5,057.29 : x
  2. Step 2: Convert to fraction form
    13,944.20/20,911.31 = 5,057.29/x
  3. Step 3: Cross multiply
    13,944.20x = 20,911.31 × 5,057.29
  4. Step 4: Simplify right side
    13,944.20x = 105,754,429.11
  5. Step 5: Solve for x
    x = 105,754,429.11/13,944.20
  6. Step 6: Final answer
    x = 7,584.12

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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.