Home / 18,121.73-27,187.05-14,643.27

Finding the Fourth Proportional to 18,121.73, 27,187.05 and 14,643.27

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Solution

The fourth proportional to 18,121.73, 27,187.05 and 14,643.27 is: 21,968.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,121.73 : 27,187.05 = 14,643.27 : x
  2. Step 2: Convert to fraction form
    18,121.73/27,187.05 = 14,643.27/x
  3. Step 3: Cross multiply
    18,121.73x = 27,187.05 × 14,643.27
  4. Step 4: Simplify right side
    18,121.73x = 398,107,313.65
  5. Step 5: Solve for x
    x = 398,107,313.65/18,121.73
  6. Step 6: Final answer
    x = 21,968.51

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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.