Home / 19,366.31-29,043.84-8,121.34

Finding the Fourth Proportional to 19,366.31, 29,043.84 and 8,121.34

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Solution

The fourth proportional to 19,366.31, 29,043.84 and 8,121.34 is: 12,179.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,366.31 : 29,043.84 = 8,121.34 : x
  2. Step 2: Convert to fraction form
    19,366.31/29,043.84 = 8,121.34/x
  3. Step 3: Cross multiply
    19,366.31x = 29,043.84 × 8,121.34
  4. Step 4: Simplify right side
    19,366.31x = 235,874,905.40
  5. Step 5: Solve for x
    x = 235,874,905.40/19,366.31
  6. Step 6: Final answer
    x = 12,179.65

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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.