Home / 28,858.60-43,288.98-8,081.56

Finding the Fourth Proportional to 28,858.60, 43,288.98 and 8,081.56

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Solution

The fourth proportional to 28,858.60, 43,288.98 and 8,081.56 is: 12,122.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,858.60 : 43,288.98 = 8,081.56 : x
  2. Step 2: Convert to fraction form
    28,858.60/43,288.98 = 8,081.56/x
  3. Step 3: Cross multiply
    28,858.60x = 43,288.98 × 8,081.56
  4. Step 4: Simplify right side
    28,858.60x = 349,842,489.21
  5. Step 5: Solve for x
    x = 349,842,489.21/28,858.60
  6. Step 6: Final answer
    x = 12,122.64

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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.