Home / 20,799.59-31,199.31-8,322.75

Finding the Fourth Proportional to 20,799.59, 31,199.31 and 8,322.75

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Solution

The fourth proportional to 20,799.59, 31,199.31 and 8,322.75 is: 12,484.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,799.59 : 31,199.31 = 8,322.75 : x
  2. Step 2: Convert to fraction form
    20,799.59/31,199.31 = 8,322.75/x
  3. Step 3: Cross multiply
    20,799.59x = 31,199.31 × 8,322.75
  4. Step 4: Simplify right side
    20,799.59x = 259,664,057.30
  5. Step 5: Solve for x
    x = 259,664,057.30/20,799.59
  6. Step 6: Final answer
    x = 12,484.10

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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.