Home / 28,867.06-43,329.78-20,556.46

Finding the Fourth Proportional to 28,867.06, 43,329.78 and 20,556.46

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Solution

The fourth proportional to 28,867.06, 43,329.78 and 20,556.46 is: 30,855.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,867.06 : 43,329.78 = 20,556.46 : x
  2. Step 2: Convert to fraction form
    28,867.06/43,329.78 = 20,556.46/x
  3. Step 3: Cross multiply
    28,867.06x = 43,329.78 × 20,556.46
  4. Step 4: Simplify right side
    28,867.06x = 890,706,889.38
  5. Step 5: Solve for x
    x = 890,706,889.38/28,867.06
  6. Step 6: Final answer
    x = 30,855.48

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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.