Home / 19,639.78-27,106.41-12,565.96

Finding the Fourth Proportional to 19,639.78, 27,106.41 and 12,565.96

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Solution

The fourth proportional to 19,639.78, 27,106.41 and 12,565.96 is: 17,343.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,639.78 : 27,106.41 = 12,565.96 : x
  2. Step 2: Convert to fraction form
    19,639.78/27,106.41 = 12,565.96/x
  3. Step 3: Cross multiply
    19,639.78x = 27,106.41 × 12,565.96
  4. Step 4: Simplify right side
    19,639.78x = 340,618,063.80
  5. Step 5: Solve for x
    x = 340,618,063.80/19,639.78
  6. Step 6: Final answer
    x = 17,343.27

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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.