Home / 21,241.38-31,862.07-6,450.38

Finding the Fourth Proportional to 21,241.38, 31,862.07 and 6,450.38

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Solution

The fourth proportional to 21,241.38, 31,862.07 and 6,450.38 is: 9,675.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.38 : 31,862.07 = 6,450.38 : x
  2. Step 2: Convert to fraction form
    21,241.38/31,862.07 = 6,450.38/x
  3. Step 3: Cross multiply
    21,241.38x = 31,862.07 × 6,450.38
  4. Step 4: Simplify right side
    21,241.38x = 205,522,299.78
  5. Step 5: Solve for x
    x = 205,522,299.78/21,241.38
  6. Step 6: Final answer
    x = 9,675.56

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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.