Home / 28,676.45-43,017.33-11,147.60

Finding the Fourth Proportional to 28,676.45, 43,017.33 and 11,147.60

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Solution

The fourth proportional to 28,676.45, 43,017.33 and 11,147.60 is: 16,722.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,676.45 : 43,017.33 = 11,147.60 : x
  2. Step 2: Convert to fraction form
    28,676.45/43,017.33 = 11,147.60/x
  3. Step 3: Cross multiply
    28,676.45x = 43,017.33 × 11,147.60
  4. Step 4: Simplify right side
    28,676.45x = 479,539,987.91
  5. Step 5: Solve for x
    x = 479,539,987.91/28,676.45
  6. Step 6: Final answer
    x = 16,722.43

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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.