Home / 28,942.28-39,938.46-16,193.28

Finding the Fourth Proportional to 28,942.28, 39,938.46 and 16,193.28

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Solution

The fourth proportional to 28,942.28, 39,938.46 and 16,193.28 is: 22,345.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,942.28 : 39,938.46 = 16,193.28 : x
  2. Step 2: Convert to fraction form
    28,942.28/39,938.46 = 16,193.28/x
  3. Step 3: Cross multiply
    28,942.28x = 39,938.46 × 16,193.28
  4. Step 4: Simplify right side
    28,942.28x = 646,734,665.55
  5. Step 5: Solve for x
    x = 646,734,665.55/28,942.28
  6. Step 6: Final answer
    x = 22,345.67

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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.