Home / 39,128.24-53,996.57-21,222.86

Finding the Fourth Proportional to 39,128.24, 53,996.57 and 21,222.86

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Solution

The fourth proportional to 39,128.24, 53,996.57 and 21,222.86 is: 29,287.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,128.24 : 53,996.57 = 21,222.86 : x
  2. Step 2: Convert to fraction form
    39,128.24/53,996.57 = 21,222.86/x
  3. Step 3: Cross multiply
    39,128.24x = 53,996.57 × 21,222.86
  4. Step 4: Simplify right side
    39,128.24x = 1,145,961,772.19
  5. Step 5: Solve for x
    x = 1,145,961,772.19/39,128.24
  6. Step 6: Final answer
    x = 29,287.33

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