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Finding the Fourth Proportional to 20,049.97, 30,051.69 and 7,561.99

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Solution

The fourth proportional to 20,049.97, 30,051.69 and 7,561.99 is: 11,334.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,049.97 : 30,051.69 = 7,561.99 : x
  2. Step 2: Convert to fraction form
    20,049.97/30,051.69 = 7,561.99/x
  3. Step 3: Cross multiply
    20,049.97x = 30,051.69 × 7,561.99
  4. Step 4: Simplify right side
    20,049.97x = 227,250,579.26
  5. Step 5: Solve for x
    x = 227,250,579.26/20,049.97
  6. Step 6: Final answer
    x = 11,334.21

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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.