Home / 21,770.43-32,611.56-18,250.44

Finding the Fourth Proportional to 21,770.43, 32,611.56 and 18,250.44

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Solution

The fourth proportional to 21,770.43, 32,611.56 and 18,250.44 is: 27,338.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,770.43 : 32,611.56 = 18,250.44 : x
  2. Step 2: Convert to fraction form
    21,770.43/32,611.56 = 18,250.44/x
  3. Step 3: Cross multiply
    21,770.43x = 32,611.56 × 18,250.44
  4. Step 4: Simplify right side
    21,770.43x = 595,175,319.09
  5. Step 5: Solve for x
    x = 595,175,319.09/21,770.43
  6. Step 6: Final answer
    x = 27,338.70

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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.