Home / 26,169.55-39,259.19-12,120.30

Finding the Fourth Proportional to 26,169.55, 39,259.19 and 12,120.30

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Solution

The fourth proportional to 26,169.55, 39,259.19 and 12,120.30 is: 18,182.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,169.55 : 39,259.19 = 12,120.30 : x
  2. Step 2: Convert to fraction form
    26,169.55/39,259.19 = 12,120.30/x
  3. Step 3: Cross multiply
    26,169.55x = 39,259.19 × 12,120.30
  4. Step 4: Simplify right side
    26,169.55x = 475,833,190.86
  5. Step 5: Solve for x
    x = 475,833,190.86/26,169.55
  6. Step 6: Final answer
    x = 18,182.71

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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.