Home / 20,755.82-31,133.74-5,173.44

Finding the Fourth Proportional to 20,755.82, 31,133.74 and 5,173.44

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Solution

The fourth proportional to 20,755.82, 31,133.74 and 5,173.44 is: 7,760.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,755.82 : 31,133.74 = 5,173.44 : x
  2. Step 2: Convert to fraction form
    20,755.82/31,133.74 = 5,173.44/x
  3. Step 3: Cross multiply
    20,755.82x = 31,133.74 × 5,173.44
  4. Step 4: Simplify right side
    20,755.82x = 161,068,535.87
  5. Step 5: Solve for x
    x = 161,068,535.87/20,755.82
  6. Step 6: Final answer
    x = 7,760.16

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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.