Home / 19,096.20-28,665.90-11,309.40

Finding the Fourth Proportional to 19,096.20, 28,665.90 and 11,309.40

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Solution

The fourth proportional to 19,096.20, 28,665.90 and 11,309.40 is: 16,976.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,096.20 : 28,665.90 = 11,309.40 : x
  2. Step 2: Convert to fraction form
    19,096.20/28,665.90 = 11,309.40/x
  3. Step 3: Cross multiply
    19,096.20x = 28,665.90 × 11,309.40
  4. Step 4: Simplify right side
    19,096.20x = 324,194,129.46
  5. Step 5: Solve for x
    x = 324,194,129.46/19,096.20
  6. Step 6: Final answer
    x = 16,976.89

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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.