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Finding the Fourth Proportional to 27,638.33, 41,463.39 and 8,919.43

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Solution

The fourth proportional to 27,638.33, 41,463.39 and 8,919.43 is: 13,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,638.33 : 41,463.39 = 8,919.43 : x
  2. Step 2: Convert to fraction form
    27,638.33/41,463.39 = 8,919.43/x
  3. Step 3: Cross multiply
    27,638.33x = 41,463.39 × 8,919.43
  4. Step 4: Simplify right side
    27,638.33x = 369,829,804.67
  5. Step 5: Solve for x
    x = 369,829,804.67/27,638.33
  6. Step 6: Final answer
    x = 13,381.05

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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.