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Finding the Fourth Proportional to 35,972.03, 49,640.42 and 20,863.73

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Solution

The fourth proportional to 35,972.03, 49,640.42 and 20,863.73 is: 28,791.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,972.03 : 49,640.42 = 20,863.73 : x
  2. Step 2: Convert to fraction form
    35,972.03/49,640.42 = 20,863.73/x
  3. Step 3: Cross multiply
    35,972.03x = 49,640.42 × 20,863.73
  4. Step 4: Simplify right side
    35,972.03x = 1,035,683,967.45
  5. Step 5: Solve for x
    x = 1,035,683,967.45/35,972.03
  6. Step 6: Final answer
    x = 28,791.37

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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.