Home / 20,116.60-30,180.30-17,940.40

Finding the Fourth Proportional to 20,116.60, 30,180.30 and 17,940.40

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Solution

The fourth proportional to 20,116.60, 30,180.30 and 17,940.40 is: 26,915.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,116.60 : 30,180.30 = 17,940.40 : x
  2. Step 2: Convert to fraction form
    20,116.60/30,180.30 = 17,940.40/x
  3. Step 3: Cross multiply
    20,116.60x = 30,180.30 × 17,940.40
  4. Step 4: Simplify right side
    20,116.60x = 541,446,654.12
  5. Step 5: Solve for x
    x = 541,446,654.12/20,116.60
  6. Step 6: Final answer
    x = 26,915.42

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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.