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Finding the Fourth Proportional to 20,060.43, 30,046.25 and 13,720.25

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Solution

The fourth proportional to 20,060.43, 30,046.25 and 13,720.25 is: 20,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,060.43 : 30,046.25 = 13,720.25 : x
  2. Step 2: Convert to fraction form
    20,060.43/30,046.25 = 13,720.25/x
  3. Step 3: Cross multiply
    20,060.43x = 30,046.25 × 13,720.25
  4. Step 4: Simplify right side
    20,060.43x = 412,241,917.85
  5. Step 5: Solve for x
    x = 412,241,917.85/20,060.43
  6. Step 6: Final answer
    x = 20,550.01

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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.