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Finding the Fourth Proportional to 34,487.96, 51,797.54 and 21,431.56

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Solution

The fourth proportional to 34,487.96, 51,797.54 and 21,431.56 is: 32,188.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,487.96 : 51,797.54 = 21,431.56 : x
  2. Step 2: Convert to fraction form
    34,487.96/51,797.54 = 21,431.56/x
  3. Step 3: Cross multiply
    34,487.96x = 51,797.54 × 21,431.56
  4. Step 4: Simplify right side
    34,487.96x = 1,110,102,086.36
  5. Step 5: Solve for x
    x = 1,110,102,086.36/34,487.96
  6. Step 6: Final answer
    x = 32,188.11

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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.