Home / 19,947.40-29,910.30-8,261.80

Finding the Fourth Proportional to 19,947.40, 29,910.30 and 8,261.80

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Solution

The fourth proportional to 19,947.40, 29,910.30 and 8,261.80 is: 12,388.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,947.40 : 29,910.30 = 8,261.80 : x
  2. Step 2: Convert to fraction form
    19,947.40/29,910.30 = 8,261.80/x
  3. Step 3: Cross multiply
    19,947.40x = 29,910.30 × 8,261.80
  4. Step 4: Simplify right side
    19,947.40x = 247,112,916.54
  5. Step 5: Solve for x
    x = 247,112,916.54/19,947.40
  6. Step 6: Final answer
    x = 12,388.23

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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.