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Finding the Fourth Proportional to 27,885.50, 38,469.43 and 16,555.49

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Solution

The fourth proportional to 27,885.50, 38,469.43 and 16,555.49 is: 22,839.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,885.50 : 38,469.43 = 16,555.49 : x
  2. Step 2: Convert to fraction form
    27,885.50/38,469.43 = 16,555.49/x
  3. Step 3: Cross multiply
    27,885.50x = 38,469.43 × 16,555.49
  4. Step 4: Simplify right side
    27,885.50x = 636,880,236.28
  5. Step 5: Solve for x
    x = 636,880,236.28/27,885.50
  6. Step 6: Final answer
    x = 22,839.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.