Home / 28,715.86-43,073.81-10,942.38

Finding the Fourth Proportional to 28,715.86, 43,073.81 and 10,942.38

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Solution

The fourth proportional to 28,715.86, 43,073.81 and 10,942.38 is: 16,413.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.86 : 43,073.81 = 10,942.38 : x
  2. Step 2: Convert to fraction form
    28,715.86/43,073.81 = 10,942.38/x
  3. Step 3: Cross multiply
    28,715.86x = 43,073.81 × 10,942.38
  4. Step 4: Simplify right side
    28,715.86x = 471,329,997.07
  5. Step 5: Solve for x
    x = 471,329,997.07/28,715.86
  6. Step 6: Final answer
    x = 16,413.58

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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.