Home / 30,993.20-42,770.92-16,846.04

Finding the Fourth Proportional to 30,993.20, 42,770.92 and 16,846.04

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Solution

The fourth proportional to 30,993.20, 42,770.92 and 16,846.04 is: 23,247.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,993.20 : 42,770.92 = 16,846.04 : x
  2. Step 2: Convert to fraction form
    30,993.20/42,770.92 = 16,846.04/x
  3. Step 3: Cross multiply
    30,993.20x = 42,770.92 × 16,846.04
  4. Step 4: Simplify right side
    30,993.20x = 720,520,415.30
  5. Step 5: Solve for x
    x = 720,520,415.30/30,993.20
  6. Step 6: Final answer
    x = 23,247.69

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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.