Home / 30,311.04-41,850.12-18,985.44

Finding the Fourth Proportional to 30,311.04, 41,850.12 and 18,985.44

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Solution

The fourth proportional to 30,311.04, 41,850.12 and 18,985.44 is: 26,212.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,311.04 : 41,850.12 = 18,985.44 : x
  2. Step 2: Convert to fraction form
    30,311.04/41,850.12 = 18,985.44/x
  3. Step 3: Cross multiply
    30,311.04x = 41,850.12 × 18,985.44
  4. Step 4: Simplify right side
    30,311.04x = 794,542,942.25
  5. Step 5: Solve for x
    x = 794,542,942.25/30,311.04
  6. Step 6: Final answer
    x = 26,212.99

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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.