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Finding the Fourth Proportional to 33,073.78, 45,640.50 and 19,644.68

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Solution

The fourth proportional to 33,073.78, 45,640.50 and 19,644.68 is: 27,108.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,073.78 : 45,640.50 = 19,644.68 : x
  2. Step 2: Convert to fraction form
    33,073.78/45,640.50 = 19,644.68/x
  3. Step 3: Cross multiply
    33,073.78x = 45,640.50 × 19,644.68
  4. Step 4: Simplify right side
    33,073.78x = 896,592,789.34
  5. Step 5: Solve for x
    x = 896,592,789.34/33,073.78
  6. Step 6: Final answer
    x = 27,108.87

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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.