Home / 20,553.22-30,832.20-7,222.12

Finding the Fourth Proportional to 20,553.22, 30,832.20 and 7,222.12

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Solution

The fourth proportional to 20,553.22, 30,832.20 and 7,222.12 is: 10,834.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,553.22 : 30,832.20 = 7,222.12 : x
  2. Step 2: Convert to fraction form
    20,553.22/30,832.20 = 7,222.12/x
  3. Step 3: Cross multiply
    20,553.22x = 30,832.20 × 7,222.12
  4. Step 4: Simplify right side
    20,553.22x = 222,673,848.26
  5. Step 5: Solve for x
    x = 222,673,848.26/20,553.22
  6. Step 6: Final answer
    x = 10,834.01

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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.