Home / 30,209.06-41,687.94-16,780.18

Finding the Fourth Proportional to 30,209.06, 41,687.94 and 16,780.18

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Solution

The fourth proportional to 30,209.06, 41,687.94 and 16,780.18 is: 23,156.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,209.06 : 41,687.94 = 16,780.18 : x
  2. Step 2: Convert to fraction form
    30,209.06/41,687.94 = 16,780.18/x
  3. Step 3: Cross multiply
    30,209.06x = 41,687.94 × 16,780.18
  4. Step 4: Simplify right side
    30,209.06x = 699,531,137.03
  5. Step 5: Solve for x
    x = 699,531,137.03/30,209.06
  6. Step 6: Final answer
    x = 23,156.34

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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.