Home / 28,793.80-43,165.05-11,259.55

Finding the Fourth Proportional to 28,793.80, 43,165.05 and 11,259.55

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Solution

The fourth proportional to 28,793.80, 43,165.05 and 11,259.55 is: 16,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,793.80 : 43,165.05 = 11,259.55 : x
  2. Step 2: Convert to fraction form
    28,793.80/43,165.05 = 11,259.55/x
  3. Step 3: Cross multiply
    28,793.80x = 43,165.05 × 11,259.55
  4. Step 4: Simplify right side
    28,793.80x = 486,019,038.73
  5. Step 5: Solve for x
    x = 486,019,038.73/28,793.80
  6. Step 6: Final answer
    x = 16,879.29

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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.