Home / 20,027.70-30,005.10-16,309.80

Finding the Fourth Proportional to 20,027.70, 30,005.10 and 16,309.80

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Solution

The fourth proportional to 20,027.70, 30,005.10 and 16,309.80 is: 24,435.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.70 : 30,005.10 = 16,309.80 : x
  2. Step 2: Convert to fraction form
    20,027.70/30,005.10 = 16,309.80/x
  3. Step 3: Cross multiply
    20,027.70x = 30,005.10 × 16,309.80
  4. Step 4: Simplify right side
    20,027.70x = 489,377,179.98
  5. Step 5: Solve for x
    x = 489,377,179.98/20,027.70
  6. Step 6: Final answer
    x = 24,435.02

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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.