Home / 28,912.44-39,905.10-16,982.04

Finding the Fourth Proportional to 28,912.44, 39,905.10 and 16,982.04

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Solution

The fourth proportional to 28,912.44, 39,905.10 and 16,982.04 is: 23,438.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912.44 : 39,905.10 = 16,982.04 : x
  2. Step 2: Convert to fraction form
    28,912.44/39,905.10 = 16,982.04/x
  3. Step 3: Cross multiply
    28,912.44x = 39,905.10 × 16,982.04
  4. Step 4: Simplify right side
    28,912.44x = 677,670,004.40
  5. Step 5: Solve for x
    x = 677,670,004.40/28,912.44
  6. Step 6: Final answer
    x = 23,438.70

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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.