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Finding the Fourth Proportional to 32,920.50, 49,380.75 and 8,296.50

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Solution

The fourth proportional to 32,920.50, 49,380.75 and 8,296.50 is: 12,444.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,920.50 : 49,380.75 = 8,296.50 : x
  2. Step 2: Convert to fraction form
    32,920.50/49,380.75 = 8,296.50/x
  3. Step 3: Cross multiply
    32,920.50x = 49,380.75 × 8,296.50
  4. Step 4: Simplify right side
    32,920.50x = 409,687,392.38
  5. Step 5: Solve for x
    x = 409,687,392.38/32,920.50
  6. Step 6: Final answer
    x = 12,444.75

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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.