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Finding the Fourth Proportional to 31,952.91, 47,911.41 and 21,969.39

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Solution

The fourth proportional to 31,952.91, 47,911.41 and 21,969.39 is: 32,941.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,952.91 : 47,911.41 = 21,969.39 : x
  2. Step 2: Convert to fraction form
    31,952.91/47,911.41 = 21,969.39/x
  3. Step 3: Cross multiply
    31,952.91x = 47,911.41 × 21,969.39
  4. Step 4: Simplify right side
    31,952.91x = 1,052,584,451.74
  5. Step 5: Solve for x
    x = 1,052,584,451.74/31,952.91
  6. Step 6: Final answer
    x = 32,941.74

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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.