Home / 36,072.20-54,108.30-20,325.80

Finding the Fourth Proportional to 36,072.20, 54,108.30 and 20,325.80

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Solution

The fourth proportional to 36,072.20, 54,108.30 and 20,325.80 is: 30,488.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,072.20 : 54,108.30 = 20,325.80 : x
  2. Step 2: Convert to fraction form
    36,072.20/54,108.30 = 20,325.80/x
  3. Step 3: Cross multiply
    36,072.20x = 54,108.30 × 20,325.80
  4. Step 4: Simplify right side
    36,072.20x = 1,099,794,484.14
  5. Step 5: Solve for x
    x = 1,099,794,484.14/36,072.20
  6. Step 6: Final answer
    x = 30,488.70

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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.