Home / 20,182.20-30,286.05-7,703.56

Finding the Fourth Proportional to 20,182.20, 30,286.05 and 7,703.56

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Solution

The fourth proportional to 20,182.20, 30,286.05 and 7,703.56 is: 11,560.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,182.20 : 30,286.05 = 7,703.56 : x
  2. Step 2: Convert to fraction form
    20,182.20/30,286.05 = 7,703.56/x
  3. Step 3: Cross multiply
    20,182.20x = 30,286.05 × 7,703.56
  4. Step 4: Simplify right side
    20,182.20x = 233,310,403.34
  5. Step 5: Solve for x
    x = 233,310,403.34/20,182.20
  6. Step 6: Final answer
    x = 11,560.21

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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.