Home / 20,503.24-30,767.10-8,816.20

Finding the Fourth Proportional to 20,503.24, 30,767.10 and 8,816.20

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Solution

The fourth proportional to 20,503.24, 30,767.10 and 8,816.20 is: 13,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,503.24 : 30,767.10 = 8,816.20 : x
  2. Step 2: Convert to fraction form
    20,503.24/30,767.10 = 8,816.20/x
  3. Step 3: Cross multiply
    20,503.24x = 30,767.10 × 8,816.20
  4. Step 4: Simplify right side
    20,503.24x = 271,248,907.02
  5. Step 5: Solve for x
    x = 271,248,907.02/20,503.24
  6. Step 6: Final answer
    x = 13,229.56

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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.