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Finding the Fourth Proportional to 22,638.72, 33,945 and 8,771.52

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Solution

The fourth proportional to 22,638.72, 33,945 and 8,771.52 is: 13,152.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,638.72 : 33,945 = 8,771.52 : x
  2. Step 2: Convert to fraction form
    22,638.72/33,945 = 8,771.52/x
  3. Step 3: Cross multiply
    22,638.72x = 33,945 × 8,771.52
  4. Step 4: Simplify right side
    22,638.72x = 297,749,246.40
  5. Step 5: Solve for x
    x = 297,749,246.40/22,638.72
  6. Step 6: Final answer
    x = 13,152.21

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1.5x scale

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.