Home / 21,197.30-31,796.20-6,406.34

Finding the Fourth Proportional to 21,197.30, 31,796.20 and 6,406.34

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Solution

The fourth proportional to 21,197.30, 31,796.20 and 6,406.34 is: 9,609.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.30 : 31,796.20 = 6,406.34 : x
  2. Step 2: Convert to fraction form
    21,197.30/31,796.20 = 6,406.34/x
  3. Step 3: Cross multiply
    21,197.30x = 31,796.20 × 6,406.34
  4. Step 4: Simplify right side
    21,197.30x = 203,697,267.91
  5. Step 5: Solve for x
    x = 203,697,267.91/21,197.30
  6. Step 6: Final answer
    x = 9,609.59

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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.