Home / 28,890.62-43,337.55-8,112.50

Finding the Fourth Proportional to 28,890.62, 43,337.55 and 8,112.50

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Solution

The fourth proportional to 28,890.62, 43,337.55 and 8,112.50 is: 12,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,890.62 : 43,337.55 = 8,112.50 : x
  2. Step 2: Convert to fraction form
    28,890.62/43,337.55 = 8,112.50/x
  3. Step 3: Cross multiply
    28,890.62x = 43,337.55 × 8,112.50
  4. Step 4: Simplify right side
    28,890.62x = 351,575,874.38
  5. Step 5: Solve for x
    x = 351,575,874.38/28,890.62
  6. Step 6: Final answer
    x = 12,169.20

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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.