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Finding the Fourth Proportional to 30,651.82, 45,980.69 and 11,933.38

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Solution

The fourth proportional to 30,651.82, 45,980.69 and 11,933.38 is: 17,901.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,651.82 : 45,980.69 = 11,933.38 : x
  2. Step 2: Convert to fraction form
    30,651.82/45,980.69 = 11,933.38/x
  3. Step 3: Cross multiply
    30,651.82x = 45,980.69 × 11,933.38
  4. Step 4: Simplify right side
    30,651.82x = 548,705,046.43
  5. Step 5: Solve for x
    x = 548,705,046.43/30,651.82
  6. Step 6: Final answer
    x = 17,901.22

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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.