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Finding the Fourth Proportional to 22,685.88, 34,023.60 and 8,647.50

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Solution

The fourth proportional to 22,685.88, 34,023.60 and 8,647.50 is: 12,969.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,685.88 : 34,023.60 = 8,647.50 : x
  2. Step 2: Convert to fraction form
    22,685.88/34,023.60 = 8,647.50/x
  3. Step 3: Cross multiply
    22,685.88x = 34,023.60 × 8,647.50
  4. Step 4: Simplify right side
    22,685.88x = 294,219,081
  5. Step 5: Solve for x
    x = 294,219,081/22,685.88
  6. Step 6: Final answer
    x = 12,969.26

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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.