Home / 30,940.85-42,698.88-16,793.66

Finding the Fourth Proportional to 30,940.85, 42,698.88 and 16,793.66

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Solution

The fourth proportional to 30,940.85, 42,698.88 and 16,793.66 is: 23,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,940.85 : 42,698.88 = 16,793.66 : x
  2. Step 2: Convert to fraction form
    30,940.85/42,698.88 = 16,793.66/x
  3. Step 3: Cross multiply
    30,940.85x = 42,698.88 × 16,793.66
  4. Step 4: Simplify right side
    30,940.85x = 717,070,579.85
  5. Step 5: Solve for x
    x = 717,070,579.85/30,940.85
  6. Step 6: Final answer
    x = 23,175.53

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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.