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Finding the Fourth Proportional to 36,688.20, 54,991.80 and 14,494.20

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Solution

The fourth proportional to 36,688.20, 54,991.80 and 14,494.20 is: 21,725.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,688.20 : 54,991.80 = 14,494.20 : x
  2. Step 2: Convert to fraction form
    36,688.20/54,991.80 = 14,494.20/x
  3. Step 3: Cross multiply
    36,688.20x = 54,991.80 × 14,494.20
  4. Step 4: Simplify right side
    36,688.20x = 797,062,147.56
  5. Step 5: Solve for x
    x = 797,062,147.56/36,688.20
  6. Step 6: Final answer
    x = 21,725.30

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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.