Home / 21,553.44-32,321.60-8,403.92

Finding the Fourth Proportional to 21,553.44, 32,321.60 and 8,403.92

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Solution

The fourth proportional to 21,553.44, 32,321.60 and 8,403.92 is: 12,602.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.44 : 32,321.60 = 8,403.92 : x
  2. Step 2: Convert to fraction form
    21,553.44/32,321.60 = 8,403.92/x
  3. Step 3: Cross multiply
    21,553.44x = 32,321.60 × 8,403.92
  4. Step 4: Simplify right side
    21,553.44x = 271,628,140.67
  5. Step 5: Solve for x
    x = 271,628,140.67/21,553.44
  6. Step 6: Final answer
    x = 12,602.54

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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.