Home / 36,785.78-55,165.68-11,817.39

Finding the Fourth Proportional to 36,785.78, 55,165.68 and 11,817.39

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Solution

The fourth proportional to 36,785.78, 55,165.68 and 11,817.39 is: 17,721.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,785.78 : 55,165.68 = 11,817.39 : x
  2. Step 2: Convert to fraction form
    36,785.78/55,165.68 = 11,817.39/x
  3. Step 3: Cross multiply
    36,785.78x = 55,165.68 × 11,817.39
  4. Step 4: Simplify right side
    36,785.78x = 651,914,355.18
  5. Step 5: Solve for x
    x = 651,914,355.18/36,785.78
  6. Step 6: Final answer
    x = 17,721.91

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1.5x scale

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.