Home / 30,531.18-45,813.78-16,490.92

Finding the Fourth Proportional to 30,531.18, 45,813.78 and 16,490.92

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Solution

The fourth proportional to 30,531.18, 45,813.78 and 16,490.92 is: 24,745.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,531.18 : 45,813.78 = 16,490.92 : x
  2. Step 2: Convert to fraction form
    30,531.18/45,813.78 = 16,490.92/x
  3. Step 3: Cross multiply
    30,531.18x = 45,813.78 × 16,490.92
  4. Step 4: Simplify right side
    30,531.18x = 755,511,380.88
  5. Step 5: Solve for x
    x = 755,511,380.88/30,531.18
  6. Step 6: Final answer
    x = 24,745.57

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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.