Home / 26,247.36-36,103.68-21,180

Finding the Fourth Proportional to 26,247.36, 36,103.68 and 21,180

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Solution

The fourth proportional to 26,247.36, 36,103.68 and 21,180 is: 29,133.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,247.36 : 36,103.68 = 21,180 : x
  2. Step 2: Convert to fraction form
    26,247.36/36,103.68 = 21,180/x
  3. Step 3: Cross multiply
    26,247.36x = 36,103.68 × 21,180
  4. Step 4: Simplify right side
    26,247.36x = 764,675,942.40
  5. Step 5: Solve for x
    x = 764,675,942.40/26,247.36
  6. Step 6: Final answer
    x = 29,133.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.