Home / 28,693.08-43,043.70-13,889.82

Finding the Fourth Proportional to 28,693.08, 43,043.70 and 13,889.82

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Solution

The fourth proportional to 28,693.08, 43,043.70 and 13,889.82 is: 20,836.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.08 : 43,043.70 = 13,889.82 : x
  2. Step 2: Convert to fraction form
    28,693.08/43,043.70 = 13,889.82/x
  3. Step 3: Cross multiply
    28,693.08x = 43,043.70 × 13,889.82
  4. Step 4: Simplify right side
    28,693.08x = 597,869,245.13
  5. Step 5: Solve for x
    x = 597,869,245.13/28,693.08
  6. Step 6: Final answer
    x = 20,836.71

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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.