Home / 30,568.08-42,183.41-17,139.29

Finding the Fourth Proportional to 30,568.08, 42,183.41 and 17,139.29

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Solution

The fourth proportional to 30,568.08, 42,183.41 and 17,139.29 is: 23,651.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,568.08 : 42,183.41 = 17,139.29 : x
  2. Step 2: Convert to fraction form
    30,568.08/42,183.41 = 17,139.29/x
  3. Step 3: Cross multiply
    30,568.08x = 42,183.41 × 17,139.29
  4. Step 4: Simplify right side
    30,568.08x = 722,993,558.75
  5. Step 5: Solve for x
    x = 722,993,558.75/30,568.08
  6. Step 6: Final answer
    x = 23,651.92

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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.