Home / 20,803.67-31,207.22-6,763.37

Finding the Fourth Proportional to 20,803.67, 31,207.22 and 6,763.37

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Solution

The fourth proportional to 20,803.67, 31,207.22 and 6,763.37 is: 10,145.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803.67 : 31,207.22 = 6,763.37 : x
  2. Step 2: Convert to fraction form
    20,803.67/31,207.22 = 6,763.37/x
  3. Step 3: Cross multiply
    20,803.67x = 31,207.22 × 6,763.37
  4. Step 4: Simplify right side
    20,803.67x = 211,066,069.60
  5. Step 5: Solve for x
    x = 211,066,069.60/20,803.67
  6. Step 6: Final answer
    x = 10,145.62

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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.