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Finding the Fourth Proportional to 28,997.87, 40,017.03 and 16,251.15

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Solution

The fourth proportional to 28,997.87, 40,017.03 and 16,251.15 is: 22,426.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.87 : 40,017.03 = 16,251.15 : x
  2. Step 2: Convert to fraction form
    28,997.87/40,017.03 = 16,251.15/x
  3. Step 3: Cross multiply
    28,997.87x = 40,017.03 × 16,251.15
  4. Step 4: Simplify right side
    28,997.87x = 650,322,757.08
  5. Step 5: Solve for x
    x = 650,322,757.08/28,997.87
  6. Step 6: Final answer
    x = 22,426.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.