Home / 30,188.68-41,661.72-16,760.12

Finding the Fourth Proportional to 30,188.68, 41,661.72 and 16,760.12

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Solution

The fourth proportional to 30,188.68, 41,661.72 and 16,760.12 is: 23,129.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,188.68 : 41,661.72 = 16,760.12 : x
  2. Step 2: Convert to fraction form
    30,188.68/41,661.72 = 16,760.12/x
  3. Step 3: Cross multiply
    30,188.68x = 41,661.72 × 16,760.12
  4. Step 4: Simplify right side
    30,188.68x = 698,255,218.30
  5. Step 5: Solve for x
    x = 698,255,218.30/30,188.68
  6. Step 6: Final answer
    x = 23,129.71

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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.