Home / 21,241.49-31,860.17-6,450.54

Finding the Fourth Proportional to 21,241.49, 31,860.17 and 6,450.54

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Solution

The fourth proportional to 21,241.49, 31,860.17 and 6,450.54 is: 9,675.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.49 : 31,860.17 = 6,450.54 : x
  2. Step 2: Convert to fraction form
    21,241.49/31,860.17 = 6,450.54/x
  3. Step 3: Cross multiply
    21,241.49x = 31,860.17 × 6,450.54
  4. Step 4: Simplify right side
    21,241.49x = 205,515,300.99
  5. Step 5: Solve for x
    x = 205,515,300.99/21,241.49
  6. Step 6: Final answer
    x = 9,675.18

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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.