Home / 36,918.36-55,371.60-13,221.52

Finding the Fourth Proportional to 36,918.36, 55,371.60 and 13,221.52

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Solution

The fourth proportional to 36,918.36, 55,371.60 and 13,221.52 is: 19,830.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,918.36 : 55,371.60 = 13,221.52 : x
  2. Step 2: Convert to fraction form
    36,918.36/55,371.60 = 13,221.52/x
  3. Step 3: Cross multiply
    36,918.36x = 55,371.60 × 13,221.52
  4. Step 4: Simplify right side
    36,918.36x = 732,096,578.40
  5. Step 5: Solve for x
    x = 732,096,578.40/36,918.36
  6. Step 6: Final answer
    x = 19,830.15

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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.