Home / 28,810.54-43,221.89-12,180.84

Finding the Fourth Proportional to 28,810.54, 43,221.89 and 12,180.84

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Solution

The fourth proportional to 28,810.54, 43,221.89 and 12,180.84 is: 18,273.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,810.54 : 43,221.89 = 12,180.84 : x
  2. Step 2: Convert to fraction form
    28,810.54/43,221.89 = 12,180.84/x
  3. Step 3: Cross multiply
    28,810.54x = 43,221.89 × 12,180.84
  4. Step 4: Simplify right side
    28,810.54x = 526,478,926.59
  5. Step 5: Solve for x
    x = 526,478,926.59/28,810.54
  6. Step 6: Final answer
    x = 18,273.83

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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.