Home / 20,576.12-28,394.89-11,623.46

Finding the Fourth Proportional to 20,576.12, 28,394.89 and 11,623.46

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Solution

The fourth proportional to 20,576.12, 28,394.89 and 11,623.46 is: 16,040.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.12 : 28,394.89 = 11,623.46 : x
  2. Step 2: Convert to fraction form
    20,576.12/28,394.89 = 11,623.46/x
  3. Step 3: Cross multiply
    20,576.12x = 28,394.89 × 11,623.46
  4. Step 4: Simplify right side
    20,576.12x = 330,046,697.09
  5. Step 5: Solve for x
    x = 330,046,697.09/20,576.12
  6. Step 6: Final answer
    x = 16,040.28

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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.