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Finding the Fourth Proportional to 40,976.04, 61,468.41 and 12,896.97

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Solution

The fourth proportional to 40,976.04, 61,468.41 and 12,896.97 is: 19,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,976.04 : 61,468.41 = 12,896.97 : x
  2. Step 2: Convert to fraction form
    40,976.04/61,468.41 = 12,896.97/x
  3. Step 3: Cross multiply
    40,976.04x = 61,468.41 × 12,896.97
  4. Step 4: Simplify right side
    40,976.04x = 792,756,239.72
  5. Step 5: Solve for x
    x = 792,756,239.72/40,976.04
  6. Step 6: Final answer
    x = 19,346.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.