Home / 19,972.50-29,947.52-6,638.36

Finding the Fourth Proportional to 19,972.50, 29,947.52 and 6,638.36

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Solution

The fourth proportional to 19,972.50, 29,947.52 and 6,638.36 is: 9,953.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972.50 : 29,947.52 = 6,638.36 : x
  2. Step 2: Convert to fraction form
    19,972.50/29,947.52 = 6,638.36/x
  3. Step 3: Cross multiply
    19,972.50x = 29,947.52 × 6,638.36
  4. Step 4: Simplify right side
    19,972.50x = 198,802,418.87
  5. Step 5: Solve for x
    x = 198,802,418.87/19,972.50
  6. Step 6: Final answer
    x = 9,953.81

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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.