Home / 20,576.98-28,396.32-11,624.58

Finding the Fourth Proportional to 20,576.98, 28,396.32 and 11,624.58

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Solution

The fourth proportional to 20,576.98, 28,396.32 and 11,624.58 is: 16,041.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.98 : 28,396.32 = 11,624.58 : x
  2. Step 2: Convert to fraction form
    20,576.98/28,396.32 = 11,624.58/x
  3. Step 3: Cross multiply
    20,576.98x = 28,396.32 × 11,624.58
  4. Step 4: Simplify right side
    20,576.98x = 330,095,293.55
  5. Step 5: Solve for x
    x = 330,095,293.55/20,576.98
  6. Step 6: Final answer
    x = 16,041.97

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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.