Home / 30,912.44-42,659.10-16,765.24

Finding the Fourth Proportional to 30,912.44, 42,659.10 and 16,765.24

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Solution

The fourth proportional to 30,912.44, 42,659.10 and 16,765.24 is: 23,135.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,912.44 : 42,659.10 = 16,765.24 : x
  2. Step 2: Convert to fraction form
    30,912.44/42,659.10 = 16,765.24/x
  3. Step 3: Cross multiply
    30,912.44x = 42,659.10 × 16,765.24
  4. Step 4: Simplify right side
    30,912.44x = 715,190,049.68
  5. Step 5: Solve for x
    x = 715,190,049.68/30,912.44
  6. Step 6: Final answer
    x = 23,135.99

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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.