Home / 39,745.21-59,580.76-13,431.55

Finding the Fourth Proportional to 39,745.21, 59,580.76 and 13,431.55

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Solution

The fourth proportional to 39,745.21, 59,580.76 and 13,431.55 is: 20,134.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,745.21 : 59,580.76 = 13,431.55 : x
  2. Step 2: Convert to fraction form
    39,745.21/59,580.76 = 13,431.55/x
  3. Step 3: Cross multiply
    39,745.21x = 59,580.76 × 13,431.55
  4. Step 4: Simplify right side
    39,745.21x = 800,262,105.93
  5. Step 5: Solve for x
    x = 800,262,105.93/39,745.21
  6. Step 6: Final answer
    x = 20,134.81

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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.