Home / 36,343.80-54,519.30-12,647.70

Finding the Fourth Proportional to 36,343.80, 54,519.30 and 12,647.70

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Solution

The fourth proportional to 36,343.80, 54,519.30 and 12,647.70 is: 18,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,343.80 : 54,519.30 = 12,647.70 : x
  2. Step 2: Convert to fraction form
    36,343.80/54,519.30 = 12,647.70/x
  3. Step 3: Cross multiply
    36,343.80x = 54,519.30 × 12,647.70
  4. Step 4: Simplify right side
    36,343.80x = 689,543,750.61
  5. Step 5: Solve for x
    x = 689,543,750.61/36,343.80
  6. Step 6: Final answer
    x = 18,972.80

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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.