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Finding the Fourth Proportional to 39,670.44, 54,744.90 and 22,912.68

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Solution

The fourth proportional to 39,670.44, 54,744.90 and 22,912.68 is: 31,619.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,670.44 : 54,744.90 = 22,912.68 : x
  2. Step 2: Convert to fraction form
    39,670.44/54,744.90 = 22,912.68/x
  3. Step 3: Cross multiply
    39,670.44x = 54,744.90 × 22,912.68
  4. Step 4: Simplify right side
    39,670.44x = 1,254,352,375.33
  5. Step 5: Solve for x
    x = 1,254,352,375.33/39,670.44
  6. Step 6: Final answer
    x = 31,619.32

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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.