Home / 40,944.86-61,396.79-12,864.54

Finding the Fourth Proportional to 40,944.86, 61,396.79 and 12,864.54

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Solution

The fourth proportional to 40,944.86, 61,396.79 and 12,864.54 is: 19,290.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,944.86 : 61,396.79 = 12,864.54 : x
  2. Step 2: Convert to fraction form
    40,944.86/61,396.79 = 12,864.54/x
  3. Step 3: Cross multiply
    40,944.86x = 61,396.79 × 12,864.54
  4. Step 4: Simplify right side
    40,944.86x = 789,841,281.38
  5. Step 5: Solve for x
    x = 789,841,281.38/40,944.86
  6. Step 6: Final answer
    x = 19,290.37

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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.