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Finding the Fourth Proportional to 20,510.87, 30,766.43 and 7,363.35

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Solution

The fourth proportional to 20,510.87, 30,766.43 and 7,363.35 is: 11,045.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,510.87 : 30,766.43 = 7,363.35 : x
  2. Step 2: Convert to fraction form
    20,510.87/30,766.43 = 7,363.35/x
  3. Step 3: Cross multiply
    20,510.87x = 30,766.43 × 7,363.35
  4. Step 4: Simplify right side
    20,510.87x = 226,544,010.75
  5. Step 5: Solve for x
    x = 226,544,010.75/20,510.87
  6. Step 6: Final answer
    x = 11,045.07

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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.