Home / 20,648.09-30,968.22-8,799.64

Finding the Fourth Proportional to 20,648.09, 30,968.22 and 8,799.64

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Solution

The fourth proportional to 20,648.09, 30,968.22 and 8,799.64 is: 13,197.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,648.09 : 30,968.22 = 8,799.64 : x
  2. Step 2: Convert to fraction form
    20,648.09/30,968.22 = 8,799.64/x
  3. Step 3: Cross multiply
    20,648.09x = 30,968.22 × 8,799.64
  4. Step 4: Simplify right side
    20,648.09x = 272,509,143.02
  5. Step 5: Solve for x
    x = 272,509,143.02/20,648.09
  6. Step 6: Final answer
    x = 13,197.79

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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.