Home / 30,626.54-42,268.54-18,687.34

Finding the Fourth Proportional to 30,626.54, 42,268.54 and 18,687.34

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Solution

The fourth proportional to 30,626.54, 42,268.54 and 18,687.34 is: 25,790.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.54 : 42,268.54 = 18,687.34 : x
  2. Step 2: Convert to fraction form
    30,626.54/42,268.54 = 18,687.34/x
  3. Step 3: Cross multiply
    30,626.54x = 42,268.54 × 18,687.34
  4. Step 4: Simplify right side
    30,626.54x = 789,886,578.28
  5. Step 5: Solve for x
    x = 789,886,578.28/30,626.54
  6. Step 6: Final answer
    x = 25,790.92

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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.