Home / 20,136.30-30,204.45-16,928.70

Finding the Fourth Proportional to 20,136.30, 30,204.45 and 16,928.70

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Solution

The fourth proportional to 20,136.30, 30,204.45 and 16,928.70 is: 25,393.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,136.30 : 30,204.45 = 16,928.70 : x
  2. Step 2: Convert to fraction form
    20,136.30/30,204.45 = 16,928.70/x
  3. Step 3: Cross multiply
    20,136.30x = 30,204.45 × 16,928.70
  4. Step 4: Simplify right side
    20,136.30x = 511,322,072.72
  5. Step 5: Solve for x
    x = 511,322,072.72/20,136.30
  6. Step 6: Final answer
    x = 25,393.05

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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.