Home / 28,923.21-39,906.72-16,984.22

Finding the Fourth Proportional to 28,923.21, 39,906.72 and 16,984.22

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Solution

The fourth proportional to 28,923.21, 39,906.72 and 16,984.22 is: 23,433.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,923.21 : 39,906.72 = 16,984.22 : x
  2. Step 2: Convert to fraction form
    28,923.21/39,906.72 = 16,984.22/x
  3. Step 3: Cross multiply
    28,923.21x = 39,906.72 × 16,984.22
  4. Step 4: Simplify right side
    28,923.21x = 677,784,312.42
  5. Step 5: Solve for x
    x = 677,784,312.42/28,923.21
  6. Step 6: Final answer
    x = 23,433.92

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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.