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Finding the Fourth Proportional to 35,273.88, 48,679.38 and 20,169

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Solution

The fourth proportional to 35,273.88, 48,679.38 and 20,169 is: 27,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,273.88 : 48,679.38 = 20,169 : x
  2. Step 2: Convert to fraction form
    35,273.88/48,679.38 = 20,169/x
  3. Step 3: Cross multiply
    35,273.88x = 48,679.38 × 20,169
  4. Step 4: Simplify right side
    35,273.88x = 981,814,415.22
  5. Step 5: Solve for x
    x = 981,814,415.22/35,273.88
  6. Step 6: Final answer
    x = 27,834.04

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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.