Home / 28,019.40-41,964.30-19,206.60

Finding the Fourth Proportional to 28,019.40, 41,964.30 and 19,206.60

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Solution

The fourth proportional to 28,019.40, 41,964.30 and 19,206.60 is: 28,765.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,019.40 : 41,964.30 = 19,206.60 : x
  2. Step 2: Convert to fraction form
    28,019.40/41,964.30 = 19,206.60/x
  3. Step 3: Cross multiply
    28,019.40x = 41,964.30 × 19,206.60
  4. Step 4: Simplify right side
    28,019.40x = 805,991,524.38
  5. Step 5: Solve for x
    x = 805,991,524.38/28,019.40
  6. Step 6: Final answer
    x = 28,765.48

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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.