Home / 26,078.37-39,120.62-8,302.80

Finding the Fourth Proportional to 26,078.37, 39,120.62 and 8,302.80

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Solution

The fourth proportional to 26,078.37, 39,120.62 and 8,302.80 is: 12,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,078.37 : 39,120.62 = 8,302.80 : x
  2. Step 2: Convert to fraction form
    26,078.37/39,120.62 = 8,302.80/x
  3. Step 3: Cross multiply
    26,078.37x = 39,120.62 × 8,302.80
  4. Step 4: Simplify right side
    26,078.37x = 324,810,642.22
  5. Step 5: Solve for x
    x = 324,810,642.22/26,078.37
  6. Step 6: Final answer
    x = 12,455.17

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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.