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Finding the Fourth Proportional to 21,629.44, 32,443.95 and 6,838.35

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Solution

The fourth proportional to 21,629.44, 32,443.95 and 6,838.35 is: 10,257.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,629.44 : 32,443.95 = 6,838.35 : x
  2. Step 2: Convert to fraction form
    21,629.44/32,443.95 = 6,838.35/x
  3. Step 3: Cross multiply
    21,629.44x = 32,443.95 × 6,838.35
  4. Step 4: Simplify right side
    21,629.44x = 221,863,166.59
  5. Step 5: Solve for x
    x = 221,863,166.59/21,629.44
  6. Step 6: Final answer
    x = 10,257.46

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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.