Home / 18,315.95-27,431.19-13,373.33

Finding the Fourth Proportional to 18,315.95, 27,431.19 and 13,373.33

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Solution

The fourth proportional to 18,315.95, 27,431.19 and 13,373.33 is: 20,028.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,315.95 : 27,431.19 = 13,373.33 : x
  2. Step 2: Convert to fraction form
    18,315.95/27,431.19 = 13,373.33/x
  3. Step 3: Cross multiply
    18,315.95x = 27,431.19 × 13,373.33
  4. Step 4: Simplify right side
    18,315.95x = 366,846,219.01
  5. Step 5: Solve for x
    x = 366,846,219.01/18,315.95
  6. Step 6: Final answer
    x = 20,028.79

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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.