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Finding the Fourth Proportional to 28,682.35, 43,017.03 and 10,906.65

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Solution

The fourth proportional to 28,682.35, 43,017.03 and 10,906.65 is: 16,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,682.35 : 43,017.03 = 10,906.65 : x
  2. Step 2: Convert to fraction form
    28,682.35/43,017.03 = 10,906.65/x
  3. Step 3: Cross multiply
    28,682.35x = 43,017.03 × 10,906.65
  4. Step 4: Simplify right side
    28,682.35x = 469,171,690.25
  5. Step 5: Solve for x
    x = 469,171,690.25/28,682.35
  6. Step 6: Final answer
    x = 16,357.51

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1.5x scale

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.