Home / 26,078.25-39,120.43-8,302.68

Finding the Fourth Proportional to 26,078.25, 39,120.43 and 8,302.68

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Solution

The fourth proportional to 26,078.25, 39,120.43 and 8,302.68 is: 12,454.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,078.25 : 39,120.43 = 8,302.68 : x
  2. Step 2: Convert to fraction form
    26,078.25/39,120.43 = 8,302.68/x
  3. Step 3: Cross multiply
    26,078.25x = 39,120.43 × 8,302.68
  4. Step 4: Simplify right side
    26,078.25x = 324,804,411.75
  5. Step 5: Solve for x
    x = 324,804,411.75/26,078.25
  6. Step 6: Final answer
    x = 12,454.99

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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.