Home / 28,728.62-39,645.50-16,153.38

Finding the Fourth Proportional to 28,728.62, 39,645.50 and 16,153.38

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Solution

The fourth proportional to 28,728.62, 39,645.50 and 16,153.38 is: 22,291.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.62 : 39,645.50 = 16,153.38 : x
  2. Step 2: Convert to fraction form
    28,728.62/39,645.50 = 16,153.38/x
  3. Step 3: Cross multiply
    28,728.62x = 39,645.50 × 16,153.38
  4. Step 4: Simplify right side
    28,728.62x = 640,408,826.79
  5. Step 5: Solve for x
    x = 640,408,826.79/28,728.62
  6. Step 6: Final answer
    x = 22,291.67

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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.