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Finding the Fourth Proportional to 40,685.44, 60,965.44 and 19,923.20

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Solution

The fourth proportional to 40,685.44, 60,965.44 and 19,923.20 is: 29,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,685.44 : 60,965.44 = 19,923.20 : x
  2. Step 2: Convert to fraction form
    40,685.44/60,965.44 = 19,923.20/x
  3. Step 3: Cross multiply
    40,685.44x = 60,965.44 × 19,923.20
  4. Step 4: Simplify right side
    40,685.44x = 1,214,626,654.21
  5. Step 5: Solve for x
    x = 1,214,626,654.21/40,685.44
  6. Step 6: Final answer
    x = 29,854.09

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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.