Home / 25,760.58-38,648.25-12,616.80

Finding the Fourth Proportional to 25,760.58, 38,648.25 and 12,616.80

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Solution

The fourth proportional to 25,760.58, 38,648.25 and 12,616.80 is: 18,928.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,760.58 : 38,648.25 = 12,616.80 : x
  2. Step 2: Convert to fraction form
    25,760.58/38,648.25 = 12,616.80/x
  3. Step 3: Cross multiply
    25,760.58x = 38,648.25 × 12,616.80
  4. Step 4: Simplify right side
    25,760.58x = 487,617,240.60
  5. Step 5: Solve for x
    x = 487,617,240.60/25,760.58
  6. Step 6: Final answer
    x = 18,928.81

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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.