Home / 20,096.70-27,732.39-11,143.50

Finding the Fourth Proportional to 20,096.70, 27,732.39 and 11,143.50

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Solution

The fourth proportional to 20,096.70, 27,732.39 and 11,143.50 is: 15,377.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096.70 : 27,732.39 = 11,143.50 : x
  2. Step 2: Convert to fraction form
    20,096.70/27,732.39 = 11,143.50/x
  3. Step 3: Cross multiply
    20,096.70x = 27,732.39 × 11,143.50
  4. Step 4: Simplify right side
    20,096.70x = 309,035,887.97
  5. Step 5: Solve for x
    x = 309,035,887.97/20,096.70
  6. Step 6: Final answer
    x = 15,377.44

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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.