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Finding the Fourth Proportional to 30,600.44, 42,228.44 and 17,171.68

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Solution

The fourth proportional to 30,600.44, 42,228.44 and 17,171.68 is: 23,696.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,600.44 : 42,228.44 = 17,171.68 : x
  2. Step 2: Convert to fraction form
    30,600.44/42,228.44 = 17,171.68/x
  3. Step 3: Cross multiply
    30,600.44x = 42,228.44 × 17,171.68
  4. Step 4: Simplify right side
    30,600.44x = 725,133,258.58
  5. Step 5: Solve for x
    x = 725,133,258.58/30,600.44
  6. Step 6: Final answer
    x = 23,696.82

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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.