Home / 19,846.65-27,373.93-13,138.03

Finding the Fourth Proportional to 19,846.65, 27,373.93 and 13,138.03

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Solution

The fourth proportional to 19,846.65, 27,373.93 and 13,138.03 is: 18,120.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,846.65 : 27,373.93 = 13,138.03 : x
  2. Step 2: Convert to fraction form
    19,846.65/27,373.93 = 13,138.03/x
  3. Step 3: Cross multiply
    19,846.65x = 27,373.93 × 13,138.03
  4. Step 4: Simplify right side
    19,846.65x = 359,639,513.56
  5. Step 5: Solve for x
    x = 359,639,513.56/19,846.65
  6. Step 6: Final answer
    x = 18,120.92

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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.