Home / 30,940.89-42,698.19-16,793.43

Finding the Fourth Proportional to 30,940.89, 42,698.19 and 16,793.43

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Solution

The fourth proportional to 30,940.89, 42,698.19 and 16,793.43 is: 23,174.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.89 : 42,698.19 = 16,793.43 : x
  2. Step 2: Convert to fraction form
    30,940.89/42,698.19 = 16,793.43/x
  3. Step 3: Cross multiply
    30,940.89x = 42,698.19 × 16,793.43
  4. Step 4: Simplify right side
    30,940.89x = 717,049,064.89
  5. Step 5: Solve for x
    x = 717,049,064.89/30,940.89
  6. Step 6: Final answer
    x = 23,174.80

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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.