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Finding the Fourth Proportional to 21,846, 32,760.67 and 7,803.41

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Solution

The fourth proportional to 21,846, 32,760.67 and 7,803.41 is: 11,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,846 : 32,760.67 = 7,803.41 : x
  2. Step 2: Convert to fraction form
    21,846/32,760.67 = 7,803.41/x
  3. Step 3: Cross multiply
    21,846x = 32,760.67 × 7,803.41
  4. Step 4: Simplify right side
    21,846x = 255,644,939.88
  5. Step 5: Solve for x
    x = 255,644,939.88/21,846
  6. Step 6: Final answer
    x = 11,702.14

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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.