Home / 20,770.44-30,996.70-18,554.28

Finding the Fourth Proportional to 20,770.44, 30,996.70 and 18,554.28

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Solution

The fourth proportional to 20,770.44, 30,996.70 and 18,554.28 is: 27,689.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,770.44 : 30,996.70 = 18,554.28 : x
  2. Step 2: Convert to fraction form
    20,770.44/30,996.70 = 18,554.28/x
  3. Step 3: Cross multiply
    20,770.44x = 30,996.70 × 18,554.28
  4. Step 4: Simplify right side
    20,770.44x = 575,121,450.88
  5. Step 5: Solve for x
    x = 575,121,450.88/20,770.44
  6. Step 6: Final answer
    x = 27,689.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.