Home / 30,975.22-42,745.77-16,827.97

Finding the Fourth Proportional to 30,975.22, 42,745.77 and 16,827.97

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Solution

The fourth proportional to 30,975.22, 42,745.77 and 16,827.97 is: 23,222.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,975.22 : 42,745.77 = 16,827.97 : x
  2. Step 2: Convert to fraction form
    30,975.22/42,745.77 = 16,827.97/x
  3. Step 3: Cross multiply
    30,975.22x = 42,745.77 × 16,827.97
  4. Step 4: Simplify right side
    30,975.22x = 719,324,535.19
  5. Step 5: Solve for x
    x = 719,324,535.19/30,975.22
  6. Step 6: Final answer
    x = 23,222.58

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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.