Home / 20,094.20-27,730-11,141.82

Finding the Fourth Proportional to 20,094.20, 27,730 and 11,141.82

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Solution

The fourth proportional to 20,094.20, 27,730 and 11,141.82 is: 15,375.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,094.20 : 27,730 = 11,141.82 : x
  2. Step 2: Convert to fraction form
    20,094.20/27,730 = 11,141.82/x
  3. Step 3: Cross multiply
    20,094.20x = 27,730 × 11,141.82
  4. Step 4: Simplify right side
    20,094.20x = 308,962,668.60
  5. Step 5: Solve for x
    x = 308,962,668.60/20,094.20
  6. Step 6: Final answer
    x = 15,375.71

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1.5x scale

Why These Related Problems?

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