Home / 28,017.89-42,028.19-11,369.34

Finding the Fourth Proportional to 28,017.89, 42,028.19 and 11,369.34

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Solution

The fourth proportional to 28,017.89, 42,028.19 and 11,369.34 is: 17,054.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.89 : 42,028.19 = 11,369.34 : x
  2. Step 2: Convert to fraction form
    28,017.89/42,028.19 = 11,369.34/x
  3. Step 3: Cross multiply
    28,017.89x = 42,028.19 × 11,369.34
  4. Step 4: Simplify right side
    28,017.89x = 477,832,724.85
  5. Step 5: Solve for x
    x = 477,832,724.85/28,017.89
  6. Step 6: Final answer
    x = 17,054.56

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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.