Home / 21,914.81-30,242.43-11,843.27

Finding the Fourth Proportional to 21,914.81, 30,242.43 and 11,843.27

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Solution

The fourth proportional to 21,914.81, 30,242.43 and 11,843.27 is: 16,343.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.81 : 30,242.43 = 11,843.27 : x
  2. Step 2: Convert to fraction form
    21,914.81/30,242.43 = 11,843.27/x
  3. Step 3: Cross multiply
    21,914.81x = 30,242.43 × 11,843.27
  4. Step 4: Simplify right side
    21,914.81x = 358,169,112.73
  5. Step 5: Solve for x
    x = 358,169,112.73/21,914.81
  6. Step 6: Final answer
    x = 16,343.71

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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.