Home / 16,220.20-24,311.10-12,111.40

Finding the Fourth Proportional to 16,220.20, 24,311.10 and 12,111.40

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Solution

The fourth proportional to 16,220.20, 24,311.10 and 12,111.40 is: 18,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,220.20 : 24,311.10 = 12,111.40 : x
  2. Step 2: Convert to fraction form
    16,220.20/24,311.10 = 12,111.40/x
  3. Step 3: Cross multiply
    16,220.20x = 24,311.10 × 12,111.40
  4. Step 4: Simplify right side
    16,220.20x = 294,441,456.54
  5. Step 5: Solve for x
    x = 294,441,456.54/16,220.20
  6. Step 6: Final answer
    x = 18,152.76

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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.