Home / 21,241.24-31,859.80-6,450.28

Finding the Fourth Proportional to 21,241.24, 31,859.80 and 6,450.28

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Solution

The fourth proportional to 21,241.24, 31,859.80 and 6,450.28 is: 9,674.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,241.24 : 31,859.80 = 6,450.28 : x
  2. Step 2: Convert to fraction form
    21,241.24/31,859.80 = 6,450.28/x
  3. Step 3: Cross multiply
    21,241.24x = 31,859.80 × 6,450.28
  4. Step 4: Simplify right side
    21,241.24x = 205,504,630.74
  5. Step 5: Solve for x
    x = 205,504,630.74/21,241.24
  6. Step 6: Final answer
    x = 9,674.79

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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.