Home / 26,015.80-39,023.70-20,183.80

Finding the Fourth Proportional to 26,015.80, 39,023.70 and 20,183.80

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Solution

The fourth proportional to 26,015.80, 39,023.70 and 20,183.80 is: 30,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,015.80 : 39,023.70 = 20,183.80 : x
  2. Step 2: Convert to fraction form
    26,015.80/39,023.70 = 20,183.80/x
  3. Step 3: Cross multiply
    26,015.80x = 39,023.70 × 20,183.80
  4. Step 4: Simplify right side
    26,015.80x = 787,646,556.06
  5. Step 5: Solve for x
    x = 787,646,556.06/26,015.80
  6. Step 6: Final answer
    x = 30,275.70

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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.