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Finding the Fourth Proportional to 36,483.21, 54,724.83 and 8,781.21

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Solution

The fourth proportional to 36,483.21, 54,724.83 and 8,781.21 is: 13,171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,483.21 : 54,724.83 = 8,781.21 : x
  2. Step 2: Convert to fraction form
    36,483.21/54,724.83 = 8,781.21/x
  3. Step 3: Cross multiply
    36,483.21x = 54,724.83 × 8,781.21
  4. Step 4: Simplify right side
    36,483.21x = 480,550,224.44
  5. Step 5: Solve for x
    x = 480,550,224.44/36,483.21
  6. Step 6: Final answer
    x = 13,171.82

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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.