Home / 28,015.20-41,995.80-16,156.80

Finding the Fourth Proportional to 28,015.20, 41,995.80 and 16,156.80

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Solution

The fourth proportional to 28,015.20, 41,995.80 and 16,156.80 is: 24,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,015.20 : 41,995.80 = 16,156.80 : x
  2. Step 2: Convert to fraction form
    28,015.20/41,995.80 = 16,156.80/x
  3. Step 3: Cross multiply
    28,015.20x = 41,995.80 × 16,156.80
  4. Step 4: Simplify right side
    28,015.20x = 678,517,741.44
  5. Step 5: Solve for x
    x = 678,517,741.44/28,015.20
  6. Step 6: Final answer
    x = 24,219.63

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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.