Home / 30,190.70-41,663.64-16,761.99

Finding the Fourth Proportional to 30,190.70, 41,663.64 and 16,761.99

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Solution

The fourth proportional to 30,190.70, 41,663.64 and 16,761.99 is: 23,131.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,190.70 : 41,663.64 = 16,761.99 : x
  2. Step 2: Convert to fraction form
    30,190.70/41,663.64 = 16,761.99/x
  3. Step 3: Cross multiply
    30,190.70x = 41,663.64 × 16,761.99
  4. Step 4: Simplify right side
    30,190.70x = 698,365,454.64
  5. Step 5: Solve for x
    x = 698,365,454.64/30,190.70
  6. Step 6: Final answer
    x = 23,131.81

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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.