Home / 19,653.31-27,121.67-11,695.83

Finding the Fourth Proportional to 19,653.31, 27,121.67 and 11,695.83

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Solution

The fourth proportional to 19,653.31, 27,121.67 and 11,695.83 is: 16,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,653.31 : 27,121.67 = 11,695.83 : x
  2. Step 2: Convert to fraction form
    19,653.31/27,121.67 = 11,695.83/x
  3. Step 3: Cross multiply
    19,653.31x = 27,121.67 × 11,695.83
  4. Step 4: Simplify right side
    19,653.31x = 317,210,441.64
  5. Step 5: Solve for x
    x = 317,210,441.64/19,653.31
  6. Step 6: Final answer
    x = 16,140.31

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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.