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Finding the Fourth Proportional to 39,646.69, 54,717.30 and 22,879.69

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Solution

The fourth proportional to 39,646.69, 54,717.30 and 22,879.69 is: 31,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,646.69 : 54,717.30 = 22,879.69 : x
  2. Step 2: Convert to fraction form
    39,646.69/54,717.30 = 22,879.69/x
  3. Step 3: Cross multiply
    39,646.69x = 54,717.30 × 22,879.69
  4. Step 4: Simplify right side
    39,646.69x = 1,251,914,724.84
  5. Step 5: Solve for x
    x = 1,251,914,724.84/39,646.69
  6. Step 6: Final answer
    x = 31,576.78

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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.