Home / 28,890.86-43,327.67-12,250.62

Finding the Fourth Proportional to 28,890.86, 43,327.67 and 12,250.62

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Solution

The fourth proportional to 28,890.86, 43,327.67 and 12,250.62 is: 18,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.86 : 43,327.67 = 12,250.62 : x
  2. Step 2: Convert to fraction form
    28,890.86/43,327.67 = 12,250.62/x
  3. Step 3: Cross multiply
    28,890.86x = 43,327.67 × 12,250.62
  4. Step 4: Simplify right side
    28,890.86x = 530,790,759.40
  5. Step 5: Solve for x
    x = 530,790,759.40/28,890.86
  6. Step 6: Final answer
    x = 18,372.28

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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.