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Finding the Fourth Proportional to 17,500, 26,216.88 and 13,558.08

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Solution

The fourth proportional to 17,500, 26,216.88 and 13,558.08 is: 20,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,500 : 26,216.88 = 13,558.08 : x
  2. Step 2: Convert to fraction form
    17,500/26,216.88 = 13,558.08/x
  3. Step 3: Cross multiply
    17,500x = 26,216.88 × 13,558.08
  4. Step 4: Simplify right side
    17,500x = 355,450,556.39
  5. Step 5: Solve for x
    x = 355,450,556.39/17,500
  6. Step 6: Final answer
    x = 20,311.46

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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.