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Finding the Fourth Proportional to 39,256, 54,173.82 and 22,489

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Solution

The fourth proportional to 39,256, 54,173.82 and 22,489 is: 31,035.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,256 : 54,173.82 = 22,489 : x
  2. Step 2: Convert to fraction form
    39,256/54,173.82 = 22,489/x
  3. Step 3: Cross multiply
    39,256x = 54,173.82 × 22,489
  4. Step 4: Simplify right side
    39,256x = 1,218,315,037.98
  5. Step 5: Solve for x
    x = 1,218,315,037.98/39,256
  6. Step 6: Final answer
    x = 31,035.13

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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.