Home / 25,698.48-38,542.20-8,163.60

Finding the Fourth Proportional to 25,698.48, 38,542.20 and 8,163.60

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Solution

The fourth proportional to 25,698.48, 38,542.20 and 8,163.60 is: 12,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,698.48 : 38,542.20 = 8,163.60 : x
  2. Step 2: Convert to fraction form
    25,698.48/38,542.20 = 8,163.60/x
  3. Step 3: Cross multiply
    25,698.48x = 38,542.20 × 8,163.60
  4. Step 4: Simplify right side
    25,698.48x = 314,643,103.92
  5. Step 5: Solve for x
    x = 314,643,103.92/25,698.48
  6. Step 6: Final answer
    x = 12,243.65

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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.