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Finding the Fourth Proportional to 36,679, 50,617.08 and 19,912

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Solution

The fourth proportional to 36,679, 50,617.08 and 19,912 is: 27,478.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,679 : 50,617.08 = 19,912 : x
  2. Step 2: Convert to fraction form
    36,679/50,617.08 = 19,912/x
  3. Step 3: Cross multiply
    36,679x = 50,617.08 × 19,912
  4. Step 4: Simplify right side
    36,679x = 1,007,887,296.96
  5. Step 5: Solve for x
    x = 1,007,887,296.96/36,679
  6. Step 6: Final answer
    x = 27,478.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.