Home / 30,821.76-46,231.92-11,113.20

Finding the Fourth Proportional to 30,821.76, 46,231.92 and 11,113.20

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Solution

The fourth proportional to 30,821.76, 46,231.92 and 11,113.20 is: 16,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,821.76 : 46,231.92 = 11,113.20 : x
  2. Step 2: Convert to fraction form
    30,821.76/46,231.92 = 11,113.20/x
  3. Step 3: Cross multiply
    30,821.76x = 46,231.92 × 11,113.20
  4. Step 4: Simplify right side
    30,821.76x = 513,784,573.34
  5. Step 5: Solve for x
    x = 513,784,573.34/30,821.76
  6. Step 6: Final answer
    x = 16,669.54

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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.