Home / 18,770.33-28,147.19-5,620.25

Finding the Fourth Proportional to 18,770.33, 28,147.19 and 5,620.25

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Solution

The fourth proportional to 18,770.33, 28,147.19 and 5,620.25 is: 8,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,770.33 : 28,147.19 = 5,620.25 : x
  2. Step 2: Convert to fraction form
    18,770.33/28,147.19 = 5,620.25/x
  3. Step 3: Cross multiply
    18,770.33x = 28,147.19 × 5,620.25
  4. Step 4: Simplify right side
    18,770.33x = 158,194,075.76
  5. Step 5: Solve for x
    x = 158,194,075.76/18,770.33
  6. Step 6: Final answer
    x = 8,427.88

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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.