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Finding the Fourth Proportional to 28,294.57, 42,441.84 and 7,234.65

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Solution

The fourth proportional to 28,294.57, 42,441.84 and 7,234.65 is: 10,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.57 : 42,441.84 = 7,234.65 : x
  2. Step 2: Convert to fraction form
    28,294.57/42,441.84 = 7,234.65/x
  3. Step 3: Cross multiply
    28,294.57x = 42,441.84 × 7,234.65
  4. Step 4: Simplify right side
    28,294.57x = 307,051,857.76
  5. Step 5: Solve for x
    x = 307,051,857.76/28,294.57
  6. Step 6: Final answer
    x = 10,851.97

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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.