Home / 21,241.15-31,861.77-6,450.17

Finding the Fourth Proportional to 21,241.15, 31,861.77 and 6,450.17

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Solution

The fourth proportional to 21,241.15, 31,861.77 and 6,450.17 is: 9,675.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.15 : 31,861.77 = 6,450.17 : x
  2. Step 2: Convert to fraction form
    21,241.15/31,861.77 = 6,450.17/x
  3. Step 3: Cross multiply
    21,241.15x = 31,861.77 × 6,450.17
  4. Step 4: Simplify right side
    21,241.15x = 205,513,912.66
  5. Step 5: Solve for x
    x = 205,513,912.66/21,241.15
  6. Step 6: Final answer
    x = 9,675.27

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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.