Home / 20,512.96-30,765.12-8,823.04

Finding the Fourth Proportional to 20,512.96, 30,765.12 and 8,823.04

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Solution

The fourth proportional to 20,512.96, 30,765.12 and 8,823.04 is: 13,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.96 : 30,765.12 = 8,823.04 : x
  2. Step 2: Convert to fraction form
    20,512.96/30,765.12 = 8,823.04/x
  3. Step 3: Cross multiply
    20,512.96x = 30,765.12 × 8,823.04
  4. Step 4: Simplify right side
    20,512.96x = 271,441,884.36
  5. Step 5: Solve for x
    x = 271,441,884.36/20,512.96
  6. Step 6: Final answer
    x = 13,232.70

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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.