Home / 20,704.90-31,057.62-5,914.30

Finding the Fourth Proportional to 20,704.90, 31,057.62 and 5,914.30

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Solution

The fourth proportional to 20,704.90, 31,057.62 and 5,914.30 is: 8,871.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,704.90 : 31,057.62 = 5,914.30 : x
  2. Step 2: Convert to fraction form
    20,704.90/31,057.62 = 5,914.30/x
  3. Step 3: Cross multiply
    20,704.90x = 31,057.62 × 5,914.30
  4. Step 4: Simplify right side
    20,704.90x = 183,684,081.97
  5. Step 5: Solve for x
    x = 183,684,081.97/20,704.90
  6. Step 6: Final answer
    x = 8,871.53

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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.