Home / 27,229.78-37,576.47-15,129.60

Finding the Fourth Proportional to 27,229.78, 37,576.47 and 15,129.60

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Solution

The fourth proportional to 27,229.78, 37,576.47 and 15,129.60 is: 20,878.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,229.78 : 37,576.47 = 15,129.60 : x
  2. Step 2: Convert to fraction form
    27,229.78/37,576.47 = 15,129.60/x
  3. Step 3: Cross multiply
    27,229.78x = 37,576.47 × 15,129.60
  4. Step 4: Simplify right side
    27,229.78x = 568,516,960.51
  5. Step 5: Solve for x
    x = 568,516,960.51/27,229.78
  6. Step 6: Final answer
    x = 20,878.50

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.