Home / 13,399.29-20,097.21-3,539.31

Finding the Fourth Proportional to 13,399.29, 20,097.21 and 3,539.31

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Solution

The fourth proportional to 13,399.29, 20,097.21 and 3,539.31 is: 5,308.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.29 : 20,097.21 = 3,539.31 : x
  2. Step 2: Convert to fraction form
    13,399.29/20,097.21 = 3,539.31/x
  3. Step 3: Cross multiply
    13,399.29x = 20,097.21 × 3,539.31
  4. Step 4: Simplify right side
    13,399.29x = 71,130,256.33
  5. Step 5: Solve for x
    x = 71,130,256.33/13,399.29
  6. Step 6: Final answer
    x = 5,308.51

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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.