Home / 30,121.49-41,568-16,692.98

Finding the Fourth Proportional to 30,121.49, 41,568 and 16,692.98

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Solution

The fourth proportional to 30,121.49, 41,568 and 16,692.98 is: 23,036.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,121.49 : 41,568 = 16,692.98 : x
  2. Step 2: Convert to fraction form
    30,121.49/41,568 = 16,692.98/x
  3. Step 3: Cross multiply
    30,121.49x = 41,568 × 16,692.98
  4. Step 4: Simplify right side
    30,121.49x = 693,893,584.80
  5. Step 5: Solve for x
    x = 693,893,584.80/30,121.49
  6. Step 6: Final answer
    x = 23,036.50

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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.