Home / 20,644.36-30,942.18-8,932.84

Finding the Fourth Proportional to 20,644.36, 30,942.18 and 8,932.84

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Solution

The fourth proportional to 20,644.36, 30,942.18 and 8,932.84 is: 13,388.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,644.36 : 30,942.18 = 8,932.84 : x
  2. Step 2: Convert to fraction form
    20,644.36/30,942.18 = 8,932.84/x
  3. Step 3: Cross multiply
    20,644.36x = 30,942.18 × 8,932.84
  4. Step 4: Simplify right side
    20,644.36x = 276,401,543.19
  5. Step 5: Solve for x
    x = 276,401,543.19/20,644.36
  6. Step 6: Final answer
    x = 13,388.72

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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.