Home / 20,150.70-30,189.60-16,432.80

Finding the Fourth Proportional to 20,150.70, 30,189.60 and 16,432.80

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Solution

The fourth proportional to 20,150.70, 30,189.60 and 16,432.80 is: 24,619.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.70 : 30,189.60 = 16,432.80 : x
  2. Step 2: Convert to fraction form
    20,150.70/30,189.60 = 16,432.80/x
  3. Step 3: Cross multiply
    20,150.70x = 30,189.60 × 16,432.80
  4. Step 4: Simplify right side
    20,150.70x = 496,099,658.88
  5. Step 5: Solve for x
    x = 496,099,658.88/20,150.70
  6. Step 6: Final answer
    x = 24,619.48

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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.