Home / 35,821.78-49,433.70-19,905.90

Finding the Fourth Proportional to 35,821.78, 49,433.70 and 19,905.90

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Solution

The fourth proportional to 35,821.78, 49,433.70 and 19,905.90 is: 27,469.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,821.78 : 49,433.70 = 19,905.90 : x
  2. Step 2: Convert to fraction form
    35,821.78/49,433.70 = 19,905.90/x
  3. Step 3: Cross multiply
    35,821.78x = 49,433.70 × 19,905.90
  4. Step 4: Simplify right side
    35,821.78x = 984,022,288.83
  5. Step 5: Solve for x
    x = 984,022,288.83/35,821.78
  6. Step 6: Final answer
    x = 27,469.94

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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.