Home / 18,960.86-28,441.70-5,812.94

Finding the Fourth Proportional to 18,960.86, 28,441.70 and 5,812.94

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Solution

The fourth proportional to 18,960.86, 28,441.70 and 5,812.94 is: 8,719.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,960.86 : 28,441.70 = 5,812.94 : x
  2. Step 2: Convert to fraction form
    18,960.86/28,441.70 = 5,812.94/x
  3. Step 3: Cross multiply
    18,960.86x = 28,441.70 × 5,812.94
  4. Step 4: Simplify right side
    18,960.86x = 165,329,895.60
  5. Step 5: Solve for x
    x = 165,329,895.60/18,960.86
  6. Step 6: Final answer
    x = 8,719.54

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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.