Home / 19,668.24-27,142.74-10,716.12

Finding the Fourth Proportional to 19,668.24, 27,142.74 and 10,716.12

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Solution

The fourth proportional to 19,668.24, 27,142.74 and 10,716.12 is: 14,788.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,668.24 : 27,142.74 = 10,716.12 : x
  2. Step 2: Convert to fraction form
    19,668.24/27,142.74 = 10,716.12/x
  3. Step 3: Cross multiply
    19,668.24x = 27,142.74 × 10,716.12
  4. Step 4: Simplify right side
    19,668.24x = 290,864,858.97
  5. Step 5: Solve for x
    x = 290,864,858.97/19,668.24
  6. Step 6: Final answer
    x = 14,788.56

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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.