Home / 25,173.36-34,738.67-13,688.02

Finding the Fourth Proportional to 25,173.36, 34,738.67 and 13,688.02

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Solution

The fourth proportional to 25,173.36, 34,738.67 and 13,688.02 is: 18,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,173.36 : 34,738.67 = 13,688.02 : x
  2. Step 2: Convert to fraction form
    25,173.36/34,738.67 = 13,688.02/x
  3. Step 3: Cross multiply
    25,173.36x = 34,738.67 × 13,688.02
  4. Step 4: Simplify right side
    25,173.36x = 475,503,609.73
  5. Step 5: Solve for x
    x = 475,503,609.73/25,173.36
  6. Step 6: Final answer
    x = 18,889.16

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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.