Home / 26,383.20-36,408.80-15,772.80

Finding the Fourth Proportional to 26,383.20, 36,408.80 and 15,772.80

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Solution

The fourth proportional to 26,383.20, 36,408.80 and 15,772.80 is: 21,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,383.20 : 36,408.80 = 15,772.80 : x
  2. Step 2: Convert to fraction form
    26,383.20/36,408.80 = 15,772.80/x
  3. Step 3: Cross multiply
    26,383.20x = 36,408.80 × 15,772.80
  4. Step 4: Simplify right side
    26,383.20x = 574,268,720.64
  5. Step 5: Solve for x
    x = 574,268,720.64/26,383.20
  6. Step 6: Final answer
    x = 21,766.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.