Home / 28,556.70-42,847.20-18,034.80

Finding the Fourth Proportional to 28,556.70, 42,847.20 and 18,034.80

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Solution

The fourth proportional to 28,556.70, 42,847.20 and 18,034.80 is: 27,059.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.70 : 42,847.20 = 18,034.80 : x
  2. Step 2: Convert to fraction form
    28,556.70/42,847.20 = 18,034.80/x
  3. Step 3: Cross multiply
    28,556.70x = 42,847.20 × 18,034.80
  4. Step 4: Simplify right side
    28,556.70x = 772,740,682.56
  5. Step 5: Solve for x
    x = 772,740,682.56/28,556.70
  6. Step 6: Final answer
    x = 27,059.87

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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.