Home / 22,171.62-30,597.21-12,611.28

Finding the Fourth Proportional to 22,171.62, 30,597.21 and 12,611.28

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Solution

The fourth proportional to 22,171.62, 30,597.21 and 12,611.28 is: 17,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,171.62 : 30,597.21 = 12,611.28 : x
  2. Step 2: Convert to fraction form
    22,171.62/30,597.21 = 12,611.28/x
  3. Step 3: Cross multiply
    22,171.62x = 30,597.21 × 12,611.28
  4. Step 4: Simplify right side
    22,171.62x = 385,869,982.53
  5. Step 5: Solve for x
    x = 385,869,982.53/22,171.62
  6. Step 6: Final answer
    x = 17,403.78

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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.