Home / 13,629.51-20,452.19-5,731.45

Finding the Fourth Proportional to 13,629.51, 20,452.19 and 5,731.45

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Solution

The fourth proportional to 13,629.51, 20,452.19 and 5,731.45 is: 8,600.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.51 : 20,452.19 = 5,731.45 : x
  2. Step 2: Convert to fraction form
    13,629.51/20,452.19 = 5,731.45/x
  3. Step 3: Cross multiply
    13,629.51x = 20,452.19 × 5,731.45
  4. Step 4: Simplify right side
    13,629.51x = 117,220,704.38
  5. Step 5: Solve for x
    x = 117,220,704.38/13,629.51
  6. Step 6: Final answer
    x = 8,600.51

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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.