Home / 26,186.40-39,279.60-16,855.20

Finding the Fourth Proportional to 26,186.40, 39,279.60 and 16,855.20

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Solution

The fourth proportional to 26,186.40, 39,279.60 and 16,855.20 is: 25,282.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,186.40 : 39,279.60 = 16,855.20 : x
  2. Step 2: Convert to fraction form
    26,186.40/39,279.60 = 16,855.20/x
  3. Step 3: Cross multiply
    26,186.40x = 39,279.60 × 16,855.20
  4. Step 4: Simplify right side
    26,186.40x = 662,065,513.92
  5. Step 5: Solve for x
    x = 662,065,513.92/26,186.40
  6. Step 6: Final answer
    x = 25,282.80

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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.