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Finding the Fourth Proportional to 30,101.79, 41,540.00 and 16,489.72

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Solution

The fourth proportional to 30,101.79, 41,540.00 and 16,489.72 is: 22,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,101.79 : 41,540.00 = 16,489.72 : x
  2. Step 2: Convert to fraction form
    30,101.79/41,540.00 = 16,489.72/x
  3. Step 3: Cross multiply
    30,101.79x = 41,540.00 × 16,489.72
  4. Step 4: Simplify right side
    30,101.79x = 684,982,906.17
  5. Step 5: Solve for x
    x = 684,982,906.17/30,101.79
  6. Step 6: Final answer
    x = 22,755.55

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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.