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Finding the Fourth Proportional to 39,456, 54,451.44 and 22,690.08

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Solution

The fourth proportional to 39,456, 54,451.44 and 22,690.08 is: 31,313.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,456 : 54,451.44 = 22,690.08 : x
  2. Step 2: Convert to fraction form
    39,456/54,451.44 = 22,690.08/x
  3. Step 3: Cross multiply
    39,456x = 54,451.44 × 22,690.08
  4. Step 4: Simplify right side
    39,456x = 1,235,507,529.72
  5. Step 5: Solve for x
    x = 1,235,507,529.72/39,456
  6. Step 6: Final answer
    x = 31,313.55

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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.