Home / 18,942.25-28,372.67-15,368.33

Finding the Fourth Proportional to 18,942.25, 28,372.67 and 15,368.33

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Solution

The fourth proportional to 18,942.25, 28,372.67 and 15,368.33 is: 23,019.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,942.25 : 28,372.67 = 15,368.33 : x
  2. Step 2: Convert to fraction form
    18,942.25/28,372.67 = 15,368.33/x
  3. Step 3: Cross multiply
    18,942.25x = 28,372.67 × 15,368.33
  4. Step 4: Simplify right side
    18,942.25x = 436,040,577.71
  5. Step 5: Solve for x
    x = 436,040,577.71/18,942.25
  6. Step 6: Final answer
    x = 23,019.47

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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.