Home / 22,161.78-30,583.58-13,214.48

Finding the Fourth Proportional to 22,161.78, 30,583.58 and 13,214.48

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Solution

The fourth proportional to 22,161.78, 30,583.58 and 13,214.48 is: 18,236.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,161.78 : 30,583.58 = 13,214.48 : x
  2. Step 2: Convert to fraction form
    22,161.78/30,583.58 = 13,214.48/x
  3. Step 3: Cross multiply
    22,161.78x = 30,583.58 × 13,214.48
  4. Step 4: Simplify right side
    22,161.78x = 404,145,887.25
  5. Step 5: Solve for x
    x = 404,145,887.25/22,161.78
  6. Step 6: Final answer
    x = 18,236.17

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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.