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Finding the Fourth Proportional to 30,608.63, 42,244.02 and 17,180.61

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Solution

The fourth proportional to 30,608.63, 42,244.02 and 17,180.61 is: 23,711.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,608.63 : 42,244.02 = 17,180.61 : x
  2. Step 2: Convert to fraction form
    30,608.63/42,244.02 = 17,180.61/x
  3. Step 3: Cross multiply
    30,608.63x = 42,244.02 × 17,180.61
  4. Step 4: Simplify right side
    30,608.63x = 725,778,032.45
  5. Step 5: Solve for x
    x = 725,778,032.45/30,608.63
  6. Step 6: Final answer
    x = 23,711.55

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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.