Home / 29,540.80-40,770.26-18,786.72

Finding the Fourth Proportional to 29,540.80, 40,770.26 and 18,786.72

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Solution

The fourth proportional to 29,540.80, 40,770.26 and 18,786.72 is: 25,928.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,540.80 : 40,770.26 = 18,786.72 : x
  2. Step 2: Convert to fraction form
    29,540.80/40,770.26 = 18,786.72/x
  3. Step 3: Cross multiply
    29,540.80x = 40,770.26 × 18,786.72
  4. Step 4: Simplify right side
    29,540.80x = 765,939,458.95
  5. Step 5: Solve for x
    x = 765,939,458.95/29,540.80
  6. Step 6: Final answer
    x = 25,928.19

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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.