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Finding the Fourth Proportional to 36,542.80, 54,835.80 and 13,166.20

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Solution

The fourth proportional to 36,542.80, 54,835.80 and 13,166.20 is: 19,757.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,542.80 : 54,835.80 = 13,166.20 : x
  2. Step 2: Convert to fraction form
    36,542.80/54,835.80 = 13,166.20/x
  3. Step 3: Cross multiply
    36,542.80x = 54,835.80 × 13,166.20
  4. Step 4: Simplify right side
    36,542.80x = 721,979,109.96
  5. Step 5: Solve for x
    x = 721,979,109.96/36,542.80
  6. Step 6: Final answer
    x = 19,757.08

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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.