Home / 20,755.62-31,133.54-5,173.24

Finding the Fourth Proportional to 20,755.62, 31,133.54 and 5,173.24

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Solution

The fourth proportional to 20,755.62, 31,133.54 and 5,173.24 is: 7,759.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.62 : 31,133.54 = 5,173.24 : x
  2. Step 2: Convert to fraction form
    20,755.62/31,133.54 = 5,173.24/x
  3. Step 3: Cross multiply
    20,755.62x = 31,133.54 × 5,173.24
  4. Step 4: Simplify right side
    20,755.62x = 161,061,340.96
  5. Step 5: Solve for x
    x = 161,061,340.96/20,755.62
  6. Step 6: Final answer
    x = 7,759.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.