Home / 17,850.79-26,865.83-13,431.39

Finding the Fourth Proportional to 17,850.79, 26,865.83 and 13,431.39

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Solution

The fourth proportional to 17,850.79, 26,865.83 and 13,431.39 is: 20,214.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,850.79 : 26,865.83 = 13,431.39 : x
  2. Step 2: Convert to fraction form
    17,850.79/26,865.83 = 13,431.39/x
  3. Step 3: Cross multiply
    17,850.79x = 26,865.83 × 13,431.39
  4. Step 4: Simplify right side
    17,850.79x = 360,845,440.40
  5. Step 5: Solve for x
    x = 360,845,440.40/17,850.79
  6. Step 6: Final answer
    x = 20,214.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.