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Finding the Fourth Proportional to 34,469.88, 51,602.76 and 21,279.84

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Solution

The fourth proportional to 34,469.88, 51,602.76 and 21,279.84 is: 31,856.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,469.88 : 51,602.76 = 21,279.84 : x
  2. Step 2: Convert to fraction form
    34,469.88/51,602.76 = 21,279.84/x
  3. Step 3: Cross multiply
    34,469.88x = 51,602.76 × 21,279.84
  4. Step 4: Simplify right side
    34,469.88x = 1,098,098,476.36
  5. Step 5: Solve for x
    x = 1,098,098,476.36/34,469.88
  6. Step 6: Final answer
    x = 31,856.75

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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.