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Finding the Fourth Proportional to 40,394.32, 55,745.94 and 22,488.64

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Solution

The fourth proportional to 40,394.32, 55,745.94 and 22,488.64 is: 31,035.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,394.32 : 55,745.94 = 22,488.64 : x
  2. Step 2: Convert to fraction form
    40,394.32/55,745.94 = 22,488.64/x
  3. Step 3: Cross multiply
    40,394.32x = 55,745.94 × 22,488.64
  4. Step 4: Simplify right side
    40,394.32x = 1,253,650,376.12
  5. Step 5: Solve for x
    x = 1,253,650,376.12/40,394.32
  6. Step 6: Final answer
    x = 31,035.31

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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.