Home / 30,201.12-41,678.61-16,772.60

Finding the Fourth Proportional to 30,201.12, 41,678.61 and 16,772.60

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Solution

The fourth proportional to 30,201.12, 41,678.61 and 16,772.60 is: 23,146.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,201.12 : 41,678.61 = 16,772.60 : x
  2. Step 2: Convert to fraction form
    30,201.12/41,678.61 = 16,772.60/x
  3. Step 3: Cross multiply
    30,201.12x = 41,678.61 × 16,772.60
  4. Step 4: Simplify right side
    30,201.12x = 699,058,654.09
  5. Step 5: Solve for x
    x = 699,058,654.09/30,201.12
  6. Step 6: Final answer
    x = 23,146.78

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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.