Home / 36,287.75-50,068.32-21,171.78

Finding the Fourth Proportional to 36,287.75, 50,068.32 and 21,171.78

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Solution

The fourth proportional to 36,287.75, 50,068.32 and 21,171.78 is: 29,211.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,287.75 : 50,068.32 = 21,171.78 : x
  2. Step 2: Convert to fraction form
    36,287.75/50,068.32 = 21,171.78/x
  3. Step 3: Cross multiply
    36,287.75x = 50,068.32 × 21,171.78
  4. Step 4: Simplify right side
    36,287.75x = 1,060,035,456.01
  5. Step 5: Solve for x
    x = 1,060,035,456.01/36,287.75
  6. Step 6: Final answer
    x = 29,211.94

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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.