Home / 26,792.78-40,178.87-12,741.98

Finding the Fourth Proportional to 26,792.78, 40,178.87 and 12,741.98

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Solution

The fourth proportional to 26,792.78, 40,178.87 and 12,741.98 is: 19,108.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,792.78 : 40,178.87 = 12,741.98 : x
  2. Step 2: Convert to fraction form
    26,792.78/40,178.87 = 12,741.98/x
  3. Step 3: Cross multiply
    26,792.78x = 40,178.87 × 12,741.98
  4. Step 4: Simplify right side
    26,792.78x = 511,958,141.14
  5. Step 5: Solve for x
    x = 511,958,141.14/26,792.78
  6. Step 6: Final answer
    x = 19,108.07

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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.