Home / 30,517.44-42,099.20-19,200.96

Finding the Fourth Proportional to 30,517.44, 42,099.20 and 19,200.96

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Solution

The fourth proportional to 30,517.44, 42,099.20 and 19,200.96 is: 26,487.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,517.44 : 42,099.20 = 19,200.96 : x
  2. Step 2: Convert to fraction form
    30,517.44/42,099.20 = 19,200.96/x
  3. Step 3: Cross multiply
    30,517.44x = 42,099.20 × 19,200.96
  4. Step 4: Simplify right side
    30,517.44x = 808,345,055.23
  5. Step 5: Solve for x
    x = 808,345,055.23/30,517.44
  6. Step 6: Final answer
    x = 26,487.97

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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.