Home / 13,629.12-20,451.61-5,731.07

Finding the Fourth Proportional to 13,629.12, 20,451.61 and 5,731.07

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Solution

The fourth proportional to 13,629.12, 20,451.61 and 5,731.07 is: 8,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.12 : 20,451.61 = 5,731.07 : x
  2. Step 2: Convert to fraction form
    13,629.12/20,451.61 = 5,731.07/x
  3. Step 3: Cross multiply
    13,629.12x = 20,451.61 × 5,731.07
  4. Step 4: Simplify right side
    13,629.12x = 117,209,608.52
  5. Step 5: Solve for x
    x = 117,209,608.52/13,629.12
  6. Step 6: Final answer
    x = 8,599.94

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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.