Home / 28,174.50-42,245.94-19,299.86

Finding the Fourth Proportional to 28,174.50, 42,245.94 and 19,299.86

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Solution

The fourth proportional to 28,174.50, 42,245.94 and 19,299.86 is: 28,938.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174.50 : 42,245.94 = 19,299.86 : x
  2. Step 2: Convert to fraction form
    28,174.50/42,245.94 = 19,299.86/x
  3. Step 3: Cross multiply
    28,174.50x = 42,245.94 × 19,299.86
  4. Step 4: Simplify right side
    28,174.50x = 815,340,727.57
  5. Step 5: Solve for x
    x = 815,340,727.57/28,174.50
  6. Step 6: Final answer
    x = 28,938.96

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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.