Home / 28,163.62-38,870.16-16,064.12

Finding the Fourth Proportional to 28,163.62, 38,870.16 and 16,064.12

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Solution

The fourth proportional to 28,163.62, 38,870.16 and 16,064.12 is: 22,170.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163.62 : 38,870.16 = 16,064.12 : x
  2. Step 2: Convert to fraction form
    28,163.62/38,870.16 = 16,064.12/x
  3. Step 3: Cross multiply
    28,163.62x = 38,870.16 × 16,064.12
  4. Step 4: Simplify right side
    28,163.62x = 624,414,914.66
  5. Step 5: Solve for x
    x = 624,414,914.66/28,163.62
  6. Step 6: Final answer
    x = 22,170.97

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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.