Home / 20,500.24-30,750.36-11,729.04

Finding the Fourth Proportional to 20,500.24, 30,750.36 and 11,729.04

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Solution

The fourth proportional to 20,500.24, 30,750.36 and 11,729.04 is: 17,593.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,500.24 : 30,750.36 = 11,729.04 : x
  2. Step 2: Convert to fraction form
    20,500.24/30,750.36 = 11,729.04/x
  3. Step 3: Cross multiply
    20,500.24x = 30,750.36 × 11,729.04
  4. Step 4: Simplify right side
    20,500.24x = 360,672,202.45
  5. Step 5: Solve for x
    x = 360,672,202.45/20,500.24
  6. Step 6: Final answer
    x = 17,593.56

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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.