Home / 28,793.29-43,189.94-18,976.40

Finding the Fourth Proportional to 28,793.29, 43,189.94 and 18,976.40

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Solution

The fourth proportional to 28,793.29, 43,189.94 and 18,976.40 is: 28,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.29 : 43,189.94 = 18,976.40 : x
  2. Step 2: Convert to fraction form
    28,793.29/43,189.94 = 18,976.40/x
  3. Step 3: Cross multiply
    28,793.29x = 43,189.94 × 18,976.40
  4. Step 4: Simplify right side
    28,793.29x = 819,589,266.58
  5. Step 5: Solve for x
    x = 819,589,266.58/28,793.29
  6. Step 6: Final answer
    x = 28,464.59

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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.