Home / 22,450.84-30,982.20-12,891.04

Finding the Fourth Proportional to 22,450.84, 30,982.20 and 12,891.04

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Solution

The fourth proportional to 22,450.84, 30,982.20 and 12,891.04 is: 17,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,450.84 : 30,982.20 = 12,891.04 : x
  2. Step 2: Convert to fraction form
    22,450.84/30,982.20 = 12,891.04/x
  3. Step 3: Cross multiply
    22,450.84x = 30,982.20 × 12,891.04
  4. Step 4: Simplify right side
    22,450.84x = 399,392,779.49
  5. Step 5: Solve for x
    x = 399,392,779.49/22,450.84
  6. Step 6: Final answer
    x = 17,789.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.