Home / 27,579.78-41,390.46-20,203.11

Finding the Fourth Proportional to 27,579.78, 41,390.46 and 20,203.11

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Solution

The fourth proportional to 27,579.78, 41,390.46 and 20,203.11 is: 30,319.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,579.78 : 41,390.46 = 20,203.11 : x
  2. Step 2: Convert to fraction form
    27,579.78/41,390.46 = 20,203.11/x
  3. Step 3: Cross multiply
    27,579.78x = 41,390.46 × 20,203.11
  4. Step 4: Simplify right side
    27,579.78x = 836,216,016.33
  5. Step 5: Solve for x
    x = 836,216,016.33/27,579.78
  6. Step 6: Final answer
    x = 30,319.89

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1.5x scale

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.