Home / 26,620.20-39,930.30-18,844.20

Finding the Fourth Proportional to 26,620.20, 39,930.30 and 18,844.20

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Solution

The fourth proportional to 26,620.20, 39,930.30 and 18,844.20 is: 28,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,620.20 : 39,930.30 = 18,844.20 : x
  2. Step 2: Convert to fraction form
    26,620.20/39,930.30 = 18,844.20/x
  3. Step 3: Cross multiply
    26,620.20x = 39,930.30 × 18,844.20
  4. Step 4: Simplify right side
    26,620.20x = 752,454,559.26
  5. Step 5: Solve for x
    x = 752,454,559.26/26,620.20
  6. Step 6: Final answer
    x = 28,266.30

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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.