Home / 19,605.28-27,053.32-11,105.70

Finding the Fourth Proportional to 19,605.28, 27,053.32 and 11,105.70

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Solution

The fourth proportional to 19,605.28, 27,053.32 and 11,105.70 is: 15,324.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,605.28 : 27,053.32 = 11,105.70 : x
  2. Step 2: Convert to fraction form
    19,605.28/27,053.32 = 11,105.70/x
  3. Step 3: Cross multiply
    19,605.28x = 27,053.32 × 11,105.70
  4. Step 4: Simplify right side
    19,605.28x = 300,446,055.92
  5. Step 5: Solve for x
    x = 300,446,055.92/19,605.28
  6. Step 6: Final answer
    x = 15,324.75

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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.