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Finding the Fourth Proportional to 30,745.61, 46,118.48 and 8,558.99

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Solution

The fourth proportional to 30,745.61, 46,118.48 and 8,558.99 is: 12,838.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,745.61 : 46,118.48 = 8,558.99 : x
  2. Step 2: Convert to fraction form
    30,745.61/46,118.48 = 8,558.99/x
  3. Step 3: Cross multiply
    30,745.61x = 46,118.48 × 8,558.99
  4. Step 4: Simplify right side
    30,745.61x = 394,727,650.44
  5. Step 5: Solve for x
    x = 394,727,650.44/30,745.61
  6. Step 6: Final answer
    x = 12,838.50

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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.