Home / 35,391.30-53,087.22-12,918.09

Finding the Fourth Proportional to 35,391.30, 53,087.22 and 12,918.09

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Solution

The fourth proportional to 35,391.30, 53,087.22 and 12,918.09 is: 19,377.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,391.30 : 53,087.22 = 12,918.09 : x
  2. Step 2: Convert to fraction form
    35,391.30/53,087.22 = 12,918.09/x
  3. Step 3: Cross multiply
    35,391.30x = 53,087.22 × 12,918.09
  4. Step 4: Simplify right side
    35,391.30x = 685,785,286.73
  5. Step 5: Solve for x
    x = 685,785,286.73/35,391.30
  6. Step 6: Final answer
    x = 19,377.23

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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.