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Finding the Fourth Proportional to 27,938.35, 41,907.53 and 8,216.91

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Solution

The fourth proportional to 27,938.35, 41,907.53 and 8,216.91 is: 12,325.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,938.35 : 41,907.53 = 8,216.91 : x
  2. Step 2: Convert to fraction form
    27,938.35/41,907.53 = 8,216.91/x
  3. Step 3: Cross multiply
    27,938.35x = 41,907.53 × 8,216.91
  4. Step 4: Simplify right side
    27,938.35x = 344,350,361.25
  5. Step 5: Solve for x
    x = 344,350,361.25/27,938.35
  6. Step 6: Final answer
    x = 12,325.36

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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.