Home / 28,776.20-43,189.94-14,745.78

Finding the Fourth Proportional to 28,776.20, 43,189.94 and 14,745.78

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Solution

The fourth proportional to 28,776.20, 43,189.94 and 14,745.78 is: 22,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,776.20 : 43,189.94 = 14,745.78 : x
  2. Step 2: Convert to fraction form
    28,776.20/43,189.94 = 14,745.78/x
  3. Step 3: Cross multiply
    28,776.20x = 43,189.94 × 14,745.78
  4. Step 4: Simplify right side
    28,776.20x = 636,869,353.45
  5. Step 5: Solve for x
    x = 636,869,353.45/28,776.20
  6. Step 6: Final answer
    x = 22,131.81

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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.