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Finding the Fourth Proportional to 33,145.60, 49,737.60 and 12,371.20

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Solution

The fourth proportional to 33,145.60, 49,737.60 and 12,371.20 is: 18,563.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,145.60 : 49,737.60 = 12,371.20 : x
  2. Step 2: Convert to fraction form
    33,145.60/49,737.60 = 12,371.20/x
  3. Step 3: Cross multiply
    33,145.60x = 49,737.60 × 12,371.20
  4. Step 4: Simplify right side
    33,145.60x = 615,313,797.12
  5. Step 5: Solve for x
    x = 615,313,797.12/33,145.60
  6. Step 6: Final answer
    x = 18,563.97

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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.