Home / 26,114.16-39,120.21-20,859.90

Finding the Fourth Proportional to 26,114.16, 39,120.21 and 20,859.90

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Solution

The fourth proportional to 26,114.16, 39,120.21 and 20,859.90 is: 31,249.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,114.16 : 39,120.21 = 20,859.90 : x
  2. Step 2: Convert to fraction form
    26,114.16/39,120.21 = 20,859.90/x
  3. Step 3: Cross multiply
    26,114.16x = 39,120.21 × 20,859.90
  4. Step 4: Simplify right side
    26,114.16x = 816,043,668.58
  5. Step 5: Solve for x
    x = 816,043,668.58/26,114.16
  6. Step 6: Final answer
    x = 31,249.09

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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.