Home / 28,166.81-38,874.33-16,229.84

Finding the Fourth Proportional to 28,166.81, 38,874.33 and 16,229.84

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Solution

The fourth proportional to 28,166.81, 38,874.33 and 16,229.84 is: 22,399.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.81 : 38,874.33 = 16,229.84 : x
  2. Step 2: Convert to fraction form
    28,166.81/38,874.33 = 16,229.84/x
  3. Step 3: Cross multiply
    28,166.81x = 38,874.33 × 16,229.84
  4. Step 4: Simplify right side
    28,166.81x = 630,923,961.64
  5. Step 5: Solve for x
    x = 630,923,961.64/28,166.81
  6. Step 6: Final answer
    x = 22,399.56

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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.