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Finding the Fourth Proportional to 36,805.35, 50,774.40 and 21,687.69

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Solution

The fourth proportional to 36,805.35, 50,774.40 and 21,687.69 is: 29,919.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,805.35 : 50,774.40 = 21,687.69 : x
  2. Step 2: Convert to fraction form
    36,805.35/50,774.40 = 21,687.69/x
  3. Step 3: Cross multiply
    36,805.35x = 50,774.40 × 21,687.69
  4. Step 4: Simplify right side
    36,805.35x = 1,101,179,447.14
  5. Step 5: Solve for x
    x = 1,101,179,447.14/36,805.35
  6. Step 6: Final answer
    x = 29,919.00

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1.5x scale

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.