Home / 20,190.81-27,770.58-16,203.18

Finding the Fourth Proportional to 20,190.81, 27,770.58 and 16,203.18

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Solution

The fourth proportional to 20,190.81, 27,770.58 and 16,203.18 is: 22,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,190.81 : 27,770.58 = 16,203.18 : x
  2. Step 2: Convert to fraction form
    20,190.81/27,770.58 = 16,203.18/x
  3. Step 3: Cross multiply
    20,190.81x = 27,770.58 × 16,203.18
  4. Step 4: Simplify right side
    20,190.81x = 449,971,706.44
  5. Step 5: Solve for x
    x = 449,971,706.44/20,190.81
  6. Step 6: Final answer
    x = 22,285.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.