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Finding the Fourth Proportional to 36,651, 50,578.40 and 19,884

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Solution

The fourth proportional to 36,651, 50,578.40 and 19,884 is: 27,439.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,651 : 50,578.40 = 19,884 : x
  2. Step 2: Convert to fraction form
    36,651/50,578.40 = 19,884/x
  3. Step 3: Cross multiply
    36,651x = 50,578.40 × 19,884
  4. Step 4: Simplify right side
    36,651x = 1,005,700,905.60
  5. Step 5: Solve for x
    x = 1,005,700,905.60/36,651
  6. Step 6: Final answer
    x = 27,439.93

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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.