Home / 13,489.01-20,230.43-3,629.05

Finding the Fourth Proportional to 13,489.01, 20,230.43 and 3,629.05

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Solution

The fourth proportional to 13,489.01, 20,230.43 and 3,629.05 is: 5,442.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,489.01 : 20,230.43 = 3,629.05 : x
  2. Step 2: Convert to fraction form
    13,489.01/20,230.43 = 3,629.05/x
  3. Step 3: Cross multiply
    13,489.01x = 20,230.43 × 3,629.05
  4. Step 4: Simplify right side
    13,489.01x = 73,417,317.69
  5. Step 5: Solve for x
    x = 73,417,317.69/13,489.01
  6. Step 6: Final answer
    x = 5,442.75

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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.