Home / 26,936.78-40,349.88-15,809.81

Finding the Fourth Proportional to 26,936.78, 40,349.88 and 15,809.81

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Solution

The fourth proportional to 26,936.78, 40,349.88 and 15,809.81 is: 23,682.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,936.78 : 40,349.88 = 15,809.81 : x
  2. Step 2: Convert to fraction form
    26,936.78/40,349.88 = 15,809.81/x
  3. Step 3: Cross multiply
    26,936.78x = 40,349.88 × 15,809.81
  4. Step 4: Simplify right side
    26,936.78x = 637,923,734.57
  5. Step 5: Solve for x
    x = 637,923,734.57/26,936.78
  6. Step 6: Final answer
    x = 23,682.26

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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.