Home / 30,257.41-41,749.25-18,321.86

Finding the Fourth Proportional to 30,257.41, 41,749.25 and 18,321.86

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Solution

The fourth proportional to 30,257.41, 41,749.25 and 18,321.86 is: 25,280.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,257.41 : 41,749.25 = 18,321.86 : x
  2. Step 2: Convert to fraction form
    30,257.41/41,749.25 = 18,321.86/x
  3. Step 3: Cross multiply
    30,257.41x = 41,749.25 × 18,321.86
  4. Step 4: Simplify right side
    30,257.41x = 764,923,913.61
  5. Step 5: Solve for x
    x = 764,923,913.61/30,257.41
  6. Step 6: Final answer
    x = 25,280.55

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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.