Home / 27,745.60-38,289.08-15,170.34

Finding the Fourth Proportional to 27,745.60, 38,289.08 and 15,170.34

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Solution

The fourth proportional to 27,745.60, 38,289.08 and 15,170.34 is: 20,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,745.60 : 38,289.08 = 15,170.34 : x
  2. Step 2: Convert to fraction form
    27,745.60/38,289.08 = 15,170.34/x
  3. Step 3: Cross multiply
    27,745.60x = 38,289.08 × 15,170.34
  4. Step 4: Simplify right side
    27,745.60x = 580,858,361.89
  5. Step 5: Solve for x
    x = 580,858,361.89/27,745.60
  6. Step 6: Final answer
    x = 20,935.15

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Double scale
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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.