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Finding the Fourth Proportional to 28,003.40, 41,918.70 and 16,281.80

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Solution

The fourth proportional to 28,003.40, 41,918.70 and 16,281.80 is: 24,372.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003.40 : 41,918.70 = 16,281.80 : x
  2. Step 2: Convert to fraction form
    28,003.40/41,918.70 = 16,281.80/x
  3. Step 3: Cross multiply
    28,003.40x = 41,918.70 × 16,281.80
  4. Step 4: Simplify right side
    28,003.40x = 682,511,889.66
  5. Step 5: Solve for x
    x = 682,511,889.66/28,003.40
  6. Step 6: Final answer
    x = 24,372.47

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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.