Home / 30,211.72-41,692.15-16,784.23

Finding the Fourth Proportional to 30,211.72, 41,692.15 and 16,784.23

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Solution

The fourth proportional to 30,211.72, 41,692.15 and 16,784.23 is: 23,162.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,211.72 : 41,692.15 = 16,784.23 : x
  2. Step 2: Convert to fraction form
    30,211.72/41,692.15 = 16,784.23/x
  3. Step 3: Cross multiply
    30,211.72x = 41,692.15 × 16,784.23
  4. Step 4: Simplify right side
    30,211.72x = 699,770,342.41
  5. Step 5: Solve for x
    x = 699,770,342.41/30,211.72
  6. Step 6: Final answer
    x = 23,162.22

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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.