Home / 20,020.57-27,628.49-10,945.96

Finding the Fourth Proportional to 20,020.57, 27,628.49 and 10,945.96

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Solution

The fourth proportional to 20,020.57, 27,628.49 and 10,945.96 is: 15,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.57 : 27,628.49 = 10,945.96 : x
  2. Step 2: Convert to fraction form
    20,020.57/27,628.49 = 10,945.96/x
  3. Step 3: Cross multiply
    20,020.57x = 27,628.49 × 10,945.96
  4. Step 4: Simplify right side
    20,020.57x = 302,420,304.69
  5. Step 5: Solve for x
    x = 302,420,304.69/20,020.57
  6. Step 6: Final answer
    x = 15,105.48

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1.5x scale

Why These Related Problems?

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