Home / 19,945.43-29,936.60-10,091.64

Finding the Fourth Proportional to 19,945.43, 29,936.60 and 10,091.64

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Solution

The fourth proportional to 19,945.43, 29,936.60 and 10,091.64 is: 15,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,945.43 : 29,936.60 = 10,091.64 : x
  2. Step 2: Convert to fraction form
    19,945.43/29,936.60 = 10,091.64/x
  3. Step 3: Cross multiply
    19,945.43x = 29,936.60 × 10,091.64
  4. Step 4: Simplify right side
    19,945.43x = 302,109,390.02
  5. Step 5: Solve for x
    x = 302,109,390.02/19,945.43
  6. Step 6: Final answer
    x = 15,146.80

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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.