Home / 21,195.98-31,795.10-6,404.52

Finding the Fourth Proportional to 21,195.98, 31,795.10 and 6,404.52

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Solution

The fourth proportional to 21,195.98, 31,795.10 and 6,404.52 is: 9,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,195.98 : 31,795.10 = 6,404.52 : x
  2. Step 2: Convert to fraction form
    21,195.98/31,795.10 = 6,404.52/x
  3. Step 3: Cross multiply
    21,195.98x = 31,795.10 × 6,404.52
  4. Step 4: Simplify right side
    21,195.98x = 203,632,353.85
  5. Step 5: Solve for x
    x = 203,632,353.85/21,195.98
  6. Step 6: Final answer
    x = 9,607.12

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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.