Home / 18,012.24-27,028.08-13,628.52

Finding the Fourth Proportional to 18,012.24, 27,028.08 and 13,628.52

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Solution

The fourth proportional to 18,012.24, 27,028.08 and 13,628.52 is: 20,450.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,012.24 : 27,028.08 = 13,628.52 : x
  2. Step 2: Convert to fraction form
    18,012.24/27,028.08 = 13,628.52/x
  3. Step 3: Cross multiply
    18,012.24x = 27,028.08 × 13,628.52
  4. Step 4: Simplify right side
    18,012.24x = 368,352,728.84
  5. Step 5: Solve for x
    x = 368,352,728.84/18,012.24
  6. Step 6: Final answer
    x = 20,450.13

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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.