Home / 17,838.48-26,751.40-5,185.60

Finding the Fourth Proportional to 17,838.48, 26,751.40 and 5,185.60

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Solution

The fourth proportional to 17,838.48, 26,751.40 and 5,185.60 is: 7,776.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,838.48 : 26,751.40 = 5,185.60 : x
  2. Step 2: Convert to fraction form
    17,838.48/26,751.40 = 5,185.60/x
  3. Step 3: Cross multiply
    17,838.48x = 26,751.40 × 5,185.60
  4. Step 4: Simplify right side
    17,838.48x = 138,722,059.84
  5. Step 5: Solve for x
    x = 138,722,059.84/17,838.48
  6. Step 6: Final answer
    x = 7,776.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.