Home / 20,634.05-30,963.37-7,487.44

Finding the Fourth Proportional to 20,634.05, 30,963.37 and 7,487.44

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Solution

The fourth proportional to 20,634.05, 30,963.37 and 7,487.44 is: 11,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,634.05 : 30,963.37 = 7,487.44 : x
  2. Step 2: Convert to fraction form
    20,634.05/30,963.37 = 7,487.44/x
  3. Step 3: Cross multiply
    20,634.05x = 30,963.37 × 7,487.44
  4. Step 4: Simplify right side
    20,634.05x = 231,836,472.47
  5. Step 5: Solve for x
    x = 231,836,472.47/20,634.05
  6. Step 6: Final answer
    x = 11,235.63

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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.