Home / 20,552.85-30,829.41-11,202.21

Finding the Fourth Proportional to 20,552.85, 30,829.41 and 11,202.21

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Solution

The fourth proportional to 20,552.85, 30,829.41 and 11,202.21 is: 16,803.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.85 : 30,829.41 = 11,202.21 : x
  2. Step 2: Convert to fraction form
    20,552.85/30,829.41 = 11,202.21/x
  3. Step 3: Cross multiply
    20,552.85x = 30,829.41 × 11,202.21
  4. Step 4: Simplify right side
    20,552.85x = 345,357,525.00
  5. Step 5: Solve for x
    x = 345,357,525.00/20,552.85
  6. Step 6: Final answer
    x = 16,803.39

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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.