Home / 19,954.78-27,536.49-11,000.75

Finding the Fourth Proportional to 19,954.78, 27,536.49 and 11,000.75

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Solution

The fourth proportional to 19,954.78, 27,536.49 and 11,000.75 is: 15,180.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,954.78 : 27,536.49 = 11,000.75 : x
  2. Step 2: Convert to fraction form
    19,954.78/27,536.49 = 11,000.75/x
  3. Step 3: Cross multiply
    19,954.78x = 27,536.49 × 11,000.75
  4. Step 4: Simplify right side
    19,954.78x = 302,921,904.69
  5. Step 5: Solve for x
    x = 302,921,904.69/19,954.78
  6. Step 6: Final answer
    x = 15,180.42

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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.