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Finding the Fourth Proportional to 30,110.89, 41,550.95 and 16,680.89

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Solution

The fourth proportional to 30,110.89, 41,550.95 and 16,680.89 is: 23,018.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,110.89 : 41,550.95 = 16,680.89 : x
  2. Step 2: Convert to fraction form
    30,110.89/41,550.95 = 16,680.89/x
  3. Step 3: Cross multiply
    30,110.89x = 41,550.95 × 16,680.89
  4. Step 4: Simplify right side
    30,110.89x = 693,106,691.29
  5. Step 5: Solve for x
    x = 693,106,691.29/30,110.89
  6. Step 6: Final answer
    x = 23,018.47

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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.