Home / 21,640.44-32,404.59-18,540.30

Finding the Fourth Proportional to 21,640.44, 32,404.59 and 18,540.30

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Solution

The fourth proportional to 21,640.44, 32,404.59 and 18,540.30 is: 27,762.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,640.44 : 32,404.59 = 18,540.30 : x
  2. Step 2: Convert to fraction form
    21,640.44/32,404.59 = 18,540.30/x
  3. Step 3: Cross multiply
    21,640.44x = 32,404.59 × 18,540.30
  4. Step 4: Simplify right side
    21,640.44x = 600,790,819.98
  5. Step 5: Solve for x
    x = 600,790,819.98/21,640.44
  6. Step 6: Final answer
    x = 27,762.41

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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.