Home / 31,838.31-47,694.40-21,818.43

Finding the Fourth Proportional to 31,838.31, 47,694.40 and 21,818.43

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Solution

The fourth proportional to 31,838.31, 47,694.40 and 21,818.43 is: 32,684.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,838.31 : 47,694.40 = 21,818.43 : x
  2. Step 2: Convert to fraction form
    31,838.31/47,694.40 = 21,818.43/x
  3. Step 3: Cross multiply
    31,838.31x = 47,694.40 × 21,818.43
  4. Step 4: Simplify right side
    31,838.31x = 1,040,616,873.25
  5. Step 5: Solve for x
    x = 1,040,616,873.25/31,838.31
  6. Step 6: Final answer
    x = 32,684.43

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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.