Home / 30,190.45-41,662.97-18,866.53

Finding the Fourth Proportional to 30,190.45, 41,662.97 and 18,866.53

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Solution

The fourth proportional to 30,190.45, 41,662.97 and 18,866.53 is: 26,035.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.45 : 41,662.97 = 18,866.53 : x
  2. Step 2: Convert to fraction form
    30,190.45/41,662.97 = 18,866.53/x
  3. Step 3: Cross multiply
    30,190.45x = 41,662.97 × 18,866.53
  4. Step 4: Simplify right side
    30,190.45x = 786,035,616.40
  5. Step 5: Solve for x
    x = 786,035,616.40/30,190.45
  6. Step 6: Final answer
    x = 26,035.90

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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.