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Finding the Fourth Proportional to 28,706.01, 43,035.78 and 8,974.41

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Solution

The fourth proportional to 28,706.01, 43,035.78 and 8,974.41 is: 13,454.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,706.01 : 43,035.78 = 8,974.41 : x
  2. Step 2: Convert to fraction form
    28,706.01/43,035.78 = 8,974.41/x
  3. Step 3: Cross multiply
    28,706.01x = 43,035.78 × 8,974.41
  4. Step 4: Simplify right side
    28,706.01x = 386,220,734.39
  5. Step 5: Solve for x
    x = 386,220,734.39/28,706.01
  6. Step 6: Final answer
    x = 13,454.35

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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.