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Finding the Fourth Proportional to 36,243, 50,015.43 and 21,146.04

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Solution

The fourth proportional to 36,243, 50,015.43 and 21,146.04 is: 29,181.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,243 : 50,015.43 = 21,146.04 : x
  2. Step 2: Convert to fraction form
    36,243/50,015.43 = 21,146.04/x
  3. Step 3: Cross multiply
    36,243x = 50,015.43 × 21,146.04
  4. Step 4: Simplify right side
    36,243x = 1,057,628,283.40
  5. Step 5: Solve for x
    x = 1,057,628,283.40/36,243
  6. Step 6: Final answer
    x = 29,181.59

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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.