Home / 27,169.31-40,749.30-7,179.02

Finding the Fourth Proportional to 27,169.31, 40,749.30 and 7,179.02

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Solution

The fourth proportional to 27,169.31, 40,749.30 and 7,179.02 is: 10,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,169.31 : 40,749.30 = 7,179.02 : x
  2. Step 2: Convert to fraction form
    27,169.31/40,749.30 = 7,179.02/x
  3. Step 3: Cross multiply
    27,169.31x = 40,749.30 × 7,179.02
  4. Step 4: Simplify right side
    27,169.31x = 292,540,039.69
  5. Step 5: Solve for x
    x = 292,540,039.69/27,169.31
  6. Step 6: Final answer
    x = 10,767.30

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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.