Home / 30,974.91-42,745.37-16,827.75

Finding the Fourth Proportional to 30,974.91, 42,745.37 and 16,827.75

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Solution

The fourth proportional to 30,974.91, 42,745.37 and 16,827.75 is: 23,222.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,974.91 : 42,745.37 = 16,827.75 : x
  2. Step 2: Convert to fraction form
    30,974.91/42,745.37 = 16,827.75/x
  3. Step 3: Cross multiply
    30,974.91x = 42,745.37 × 16,827.75
  4. Step 4: Simplify right side
    30,974.91x = 719,308,410.53
  5. Step 5: Solve for x
    x = 719,308,410.53/30,974.91
  6. Step 6: Final answer
    x = 23,222.30

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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.