Home / 20,108.20-30,176.70-11,333.80

Finding the Fourth Proportional to 20,108.20, 30,176.70 and 11,333.80

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Solution

The fourth proportional to 20,108.20, 30,176.70 and 11,333.80 is: 17,008.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,108.20 : 30,176.70 = 11,333.80 : x
  2. Step 2: Convert to fraction form
    20,108.20/30,176.70 = 11,333.80/x
  3. Step 3: Cross multiply
    20,108.20x = 30,176.70 × 11,333.80
  4. Step 4: Simplify right side
    20,108.20x = 342,016,682.46
  5. Step 5: Solve for x
    x = 342,016,682.46/20,108.20
  6. Step 6: Final answer
    x = 17,008.82

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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.