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Finding the Fourth Proportional to 36,687.18, 50,628.03 and 19,920.30

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Solution

The fourth proportional to 36,687.18, 50,628.03 and 19,920.30 is: 27,489.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,687.18 : 50,628.03 = 19,920.30 : x
  2. Step 2: Convert to fraction form
    36,687.18/50,628.03 = 19,920.30/x
  3. Step 3: Cross multiply
    36,687.18x = 50,628.03 × 19,920.30
  4. Step 4: Simplify right side
    36,687.18x = 1,008,525,546.01
  5. Step 5: Solve for x
    x = 1,008,525,546.01/36,687.18
  6. Step 6: Final answer
    x = 27,489.86

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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.