Home / 28,380.33-39,164.85-16,450.59

Finding the Fourth Proportional to 28,380.33, 39,164.85 and 16,450.59

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Solution

The fourth proportional to 28,380.33, 39,164.85 and 16,450.59 is: 22,701.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,380.33 : 39,164.85 = 16,450.59 : x
  2. Step 2: Convert to fraction form
    28,380.33/39,164.85 = 16,450.59/x
  3. Step 3: Cross multiply
    28,380.33x = 39,164.85 × 16,450.59
  4. Step 4: Simplify right side
    28,380.33x = 644,284,889.76
  5. Step 5: Solve for x
    x = 644,284,889.76/28,380.33
  6. Step 6: Final answer
    x = 22,701.81

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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.