Home / 30,920.25-42,669.97-16,773.15

Finding the Fourth Proportional to 30,920.25, 42,669.97 and 16,773.15

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Solution

The fourth proportional to 30,920.25, 42,669.97 and 16,773.15 is: 23,146.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,920.25 : 42,669.97 = 16,773.15 : x
  2. Step 2: Convert to fraction form
    30,920.25/42,669.97 = 16,773.15/x
  3. Step 3: Cross multiply
    30,920.25x = 42,669.97 × 16,773.15
  4. Step 4: Simplify right side
    30,920.25x = 715,709,765.37
  5. Step 5: Solve for x
    x = 715,709,765.37/30,920.25
  6. Step 6: Final answer
    x = 23,146.96

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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.