Home / 20,076.10-30,114.15-10,234.60

Finding the Fourth Proportional to 20,076.10, 30,114.15 and 10,234.60

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Solution

The fourth proportional to 20,076.10, 30,114.15 and 10,234.60 is: 15,351.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.10 : 30,114.15 = 10,234.60 : x
  2. Step 2: Convert to fraction form
    20,076.10/30,114.15 = 10,234.60/x
  3. Step 3: Cross multiply
    20,076.10x = 30,114.15 × 10,234.60
  4. Step 4: Simplify right side
    20,076.10x = 308,206,279.59
  5. Step 5: Solve for x
    x = 308,206,279.59/20,076.10
  6. Step 6: Final answer
    x = 15,351.90

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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.