Home / 28,556.10-39,431.61-17,949.15

Finding the Fourth Proportional to 28,556.10, 39,431.61 and 17,949.15

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Solution

The fourth proportional to 28,556.10, 39,431.61 and 17,949.15 is: 24,785.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,556.10 : 39,431.61 = 17,949.15 : x
  2. Step 2: Convert to fraction form
    28,556.10/39,431.61 = 17,949.15/x
  3. Step 3: Cross multiply
    28,556.10x = 39,431.61 × 17,949.15
  4. Step 4: Simplify right side
    28,556.10x = 707,763,882.63
  5. Step 5: Solve for x
    x = 707,763,882.63/28,556.10
  6. Step 6: Final answer
    x = 24,785.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.