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Finding the Fourth Proportional to 28,325.50, 42,469.50 and 15,846.83

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Solution

The fourth proportional to 28,325.50, 42,469.50 and 15,846.83 is: 23,759.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,325.50 : 42,469.50 = 15,846.83 : x
  2. Step 2: Convert to fraction form
    28,325.50/42,469.50 = 15,846.83/x
  3. Step 3: Cross multiply
    28,325.50x = 42,469.50 × 15,846.83
  4. Step 4: Simplify right side
    28,325.50x = 673,006,946.69
  5. Step 5: Solve for x
    x = 673,006,946.69/28,325.50
  6. Step 6: Final answer
    x = 23,759.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.