Home / 27,013.81-40,520.38-7,021.54

Finding the Fourth Proportional to 27,013.81, 40,520.38 and 7,021.54

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Solution

The fourth proportional to 27,013.81, 40,520.38 and 7,021.54 is: 10,532.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,013.81 : 40,520.38 = 7,021.54 : x
  2. Step 2: Convert to fraction form
    27,013.81/40,520.38 = 7,021.54/x
  3. Step 3: Cross multiply
    27,013.81x = 40,520.38 × 7,021.54
  4. Step 4: Simplify right side
    27,013.81x = 284,515,468.99
  5. Step 5: Solve for x
    x = 284,515,468.99/27,013.81
  6. Step 6: Final answer
    x = 10,532.22

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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.