Home / 19,629.10-29,451.47-7,149.97

Finding the Fourth Proportional to 19,629.10, 29,451.47 and 7,149.97

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Solution

The fourth proportional to 19,629.10, 29,451.47 and 7,149.97 is: 10,727.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,629.10 : 29,451.47 = 7,149.97 : x
  2. Step 2: Convert to fraction form
    19,629.10/29,451.47 = 7,149.97/x
  3. Step 3: Cross multiply
    19,629.10x = 29,451.47 × 7,149.97
  4. Step 4: Simplify right side
    19,629.10x = 210,577,126.96
  5. Step 5: Solve for x
    x = 210,577,126.96/19,629.10
  6. Step 6: Final answer
    x = 10,727.80

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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.