Home / 19,940.68-27,516.54-11,557.72

Finding the Fourth Proportional to 19,940.68, 27,516.54 and 11,557.72

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Solution

The fourth proportional to 19,940.68, 27,516.54 and 11,557.72 is: 15,948.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,940.68 : 27,516.54 = 11,557.72 : x
  2. Step 2: Convert to fraction form
    19,940.68/27,516.54 = 11,557.72/x
  3. Step 3: Cross multiply
    19,940.68x = 27,516.54 × 11,557.72
  4. Step 4: Simplify right side
    19,940.68x = 318,028,464.69
  5. Step 5: Solve for x
    x = 318,028,464.69/19,940.68
  6. Step 6: Final answer
    x = 15,948.73

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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.