Home / 27,147.69-40,719.61-8,427.27

Finding the Fourth Proportional to 27,147.69, 40,719.61 and 8,427.27

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Solution

The fourth proportional to 27,147.69, 40,719.61 and 8,427.27 is: 12,640.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,147.69 : 40,719.61 = 8,427.27 : x
  2. Step 2: Convert to fraction form
    27,147.69/40,719.61 = 8,427.27/x
  3. Step 3: Cross multiply
    27,147.69x = 40,719.61 × 8,427.27
  4. Step 4: Simplify right side
    27,147.69x = 343,155,311.00
  5. Step 5: Solve for x
    x = 343,155,311.00/27,147.69
  6. Step 6: Final answer
    x = 12,640.31

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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.