Home / 16,969.20-25,419.24-15,221.04

Finding the Fourth Proportional to 16,969.20, 25,419.24 and 15,221.04

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Solution

The fourth proportional to 16,969.20, 25,419.24 and 15,221.04 is: 22,800.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.20 : 25,419.24 = 15,221.04 : x
  2. Step 2: Convert to fraction form
    16,969.20/25,419.24 = 15,221.04/x
  3. Step 3: Cross multiply
    16,969.20x = 25,419.24 × 15,221.04
  4. Step 4: Simplify right side
    16,969.20x = 386,907,268.81
  5. Step 5: Solve for x
    x = 386,907,268.81/16,969.20
  6. Step 6: Final answer
    x = 22,800.56

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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.