Home / 22,611.56-31,203.36-12,539.97

Finding the Fourth Proportional to 22,611.56, 31,203.36 and 12,539.97

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Solution

The fourth proportional to 22,611.56, 31,203.36 and 12,539.97 is: 17,304.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,611.56 : 31,203.36 = 12,539.97 : x
  2. Step 2: Convert to fraction form
    22,611.56/31,203.36 = 12,539.97/x
  3. Step 3: Cross multiply
    22,611.56x = 31,203.36 × 12,539.97
  4. Step 4: Simplify right side
    22,611.56x = 391,289,198.30
  5. Step 5: Solve for x
    x = 391,289,198.30/22,611.56
  6. Step 6: Final answer
    x = 17,304.83

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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.