Home / 36,128.70-54,172.86-11,161.68

Finding the Fourth Proportional to 36,128.70, 54,172.86 and 11,161.68

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Solution

The fourth proportional to 36,128.70, 54,172.86 and 11,161.68 is: 16,736.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,128.70 : 54,172.86 = 11,161.68 : x
  2. Step 2: Convert to fraction form
    36,128.70/54,172.86 = 11,161.68/x
  3. Step 3: Cross multiply
    36,128.70x = 54,172.86 × 11,161.68
  4. Step 4: Simplify right side
    36,128.70x = 604,660,128.00
  5. Step 5: Solve for x
    x = 604,660,128.00/36,128.70
  6. Step 6: Final answer
    x = 16,736.28

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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.