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Finding the Fourth Proportional to 35,647.70, 49,193.22 and 19,731.80

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Solution

The fourth proportional to 35,647.70, 49,193.22 and 19,731.80 is: 27,229.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,647.70 : 49,193.22 = 19,731.80 : x
  2. Step 2: Convert to fraction form
    35,647.70/49,193.22 = 19,731.80/x
  3. Step 3: Cross multiply
    35,647.70x = 49,193.22 × 19,731.80
  4. Step 4: Simplify right side
    35,647.70x = 970,670,975.37
  5. Step 5: Solve for x
    x = 970,670,975.37/35,647.70
  6. Step 6: Final answer
    x = 27,229.56

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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.