Home / 30,321.09-41,842.04-16,891.65

Finding the Fourth Proportional to 30,321.09, 41,842.04 and 16,891.65

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Solution

The fourth proportional to 30,321.09, 41,842.04 and 16,891.65 is: 23,309.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,321.09 : 41,842.04 = 16,891.65 : x
  2. Step 2: Convert to fraction form
    30,321.09/41,842.04 = 16,891.65/x
  3. Step 3: Cross multiply
    30,321.09x = 41,842.04 × 16,891.65
  4. Step 4: Simplify right side
    30,321.09x = 706,780,885.76
  5. Step 5: Solve for x
    x = 706,780,885.76/30,321.09
  6. Step 6: Final answer
    x = 23,309.88

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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.