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Finding the Fourth Proportional to 18,329.31, 27,493.73 and 4,478.43

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Solution

The fourth proportional to 18,329.31, 27,493.73 and 4,478.43 is: 6,717.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,329.31 : 27,493.73 = 4,478.43 : x
  2. Step 2: Convert to fraction form
    18,329.31/27,493.73 = 4,478.43/x
  3. Step 3: Cross multiply
    18,329.31x = 27,493.73 × 4,478.43
  4. Step 4: Simplify right side
    18,329.31x = 123,128,722.85
  5. Step 5: Solve for x
    x = 123,128,722.85/18,329.31
  6. Step 6: Final answer
    x = 6,717.59

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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.