Home / 30,186.96-41,660.63-16,760.80

Finding the Fourth Proportional to 30,186.96, 41,660.63 and 16,760.80

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Solution

The fourth proportional to 30,186.96, 41,660.63 and 16,760.80 is: 23,131.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,186.96 : 41,660.63 = 16,760.80 : x
  2. Step 2: Convert to fraction form
    30,186.96/41,660.63 = 16,760.80/x
  3. Step 3: Cross multiply
    30,186.96x = 41,660.63 × 16,760.80
  4. Step 4: Simplify right side
    30,186.96x = 698,265,487.30
  5. Step 5: Solve for x
    x = 698,265,487.30/30,186.96
  6. Step 6: Final answer
    x = 23,131.36

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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.