Home / 13,399.30-20,097.20-3,539.32

Finding the Fourth Proportional to 13,399.30, 20,097.20 and 3,539.32

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Solution

The fourth proportional to 13,399.30, 20,097.20 and 3,539.32 is: 5,308.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.30 : 20,097.20 = 3,539.32 : x
  2. Step 2: Convert to fraction form
    13,399.30/20,097.20 = 3,539.32/x
  3. Step 3: Cross multiply
    13,399.30x = 20,097.20 × 3,539.32
  4. Step 4: Simplify right side
    13,399.30x = 71,130,421.90
  5. Step 5: Solve for x
    x = 71,130,421.90/13,399.30
  6. Step 6: Final answer
    x = 5,308.52

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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.