Home / 19,828.67-27,361.53-11,870.69

Finding the Fourth Proportional to 19,828.67, 27,361.53 and 11,870.69

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Solution

The fourth proportional to 19,828.67, 27,361.53 and 11,870.69 is: 16,380.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,828.67 : 27,361.53 = 11,870.69 : x
  2. Step 2: Convert to fraction form
    19,828.67/27,361.53 = 11,870.69/x
  3. Step 3: Cross multiply
    19,828.67x = 27,361.53 × 11,870.69
  4. Step 4: Simplify right side
    19,828.67x = 324,800,103.75
  5. Step 5: Solve for x
    x = 324,800,103.75/19,828.67
  6. Step 6: Final answer
    x = 16,380.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.