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Finding the Fourth Proportional to 23,145, 34,710.30 and 8,351.98

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Solution

The fourth proportional to 23,145, 34,710.30 and 8,351.98 is: 12,525.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,145 : 34,710.30 = 8,351.98 : x
  2. Step 2: Convert to fraction form
    23,145/34,710.30 = 8,351.98/x
  3. Step 3: Cross multiply
    23,145x = 34,710.30 × 8,351.98
  4. Step 4: Simplify right side
    23,145x = 289,899,731.39
  5. Step 5: Solve for x
    x = 289,899,731.39/23,145
  6. Step 6: Final answer
    x = 12,525.37

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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.