Home / 40,780.22-61,170.30-11,198.18

Finding the Fourth Proportional to 40,780.22, 61,170.30 and 11,198.18

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Solution

The fourth proportional to 40,780.22, 61,170.30 and 11,198.18 is: 16,797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,780.22 : 61,170.30 = 11,198.18 : x
  2. Step 2: Convert to fraction form
    40,780.22/61,170.30 = 11,198.18/x
  3. Step 3: Cross multiply
    40,780.22x = 61,170.30 × 11,198.18
  4. Step 4: Simplify right side
    40,780.22x = 684,996,030.05
  5. Step 5: Solve for x
    x = 684,996,030.05/40,780.22
  6. Step 6: Final answer
    x = 16,797.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.