Home / 18,968.83-28,431.09-14,273.75

Finding the Fourth Proportional to 18,968.83, 28,431.09 and 14,273.75

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Solution

The fourth proportional to 18,968.83, 28,431.09 and 14,273.75 is: 21,393.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,968.83 : 28,431.09 = 14,273.75 : x
  2. Step 2: Convert to fraction form
    18,968.83/28,431.09 = 14,273.75/x
  3. Step 3: Cross multiply
    18,968.83x = 28,431.09 × 14,273.75
  4. Step 4: Simplify right side
    18,968.83x = 405,818,057.36
  5. Step 5: Solve for x
    x = 405,818,057.36/18,968.83
  6. Step 6: Final answer
    x = 21,393.94

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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.