Home / 28,719.41-39,627.07-16,780.44

Finding the Fourth Proportional to 28,719.41, 39,627.07 and 16,780.44

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Solution

The fourth proportional to 28,719.41, 39,627.07 and 16,780.44 is: 23,153.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,719.41 : 39,627.07 = 16,780.44 : x
  2. Step 2: Convert to fraction form
    28,719.41/39,627.07 = 16,780.44/x
  3. Step 3: Cross multiply
    28,719.41x = 39,627.07 × 16,780.44
  4. Step 4: Simplify right side
    28,719.41x = 664,959,760.10
  5. Step 5: Solve for x
    x = 664,959,760.10/28,719.41
  6. Step 6: Final answer
    x = 23,153.67

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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.