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Finding the Fourth Proportional to 17,020.50, 25,530.57 and 6,639.54

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Solution

The fourth proportional to 17,020.50, 25,530.57 and 6,639.54 is: 9,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,020.50 : 25,530.57 = 6,639.54 : x
  2. Step 2: Convert to fraction form
    17,020.50/25,530.57 = 6,639.54/x
  3. Step 3: Cross multiply
    17,020.50x = 25,530.57 × 6,639.54
  4. Step 4: Simplify right side
    17,020.50x = 169,511,240.74
  5. Step 5: Solve for x
    x = 169,511,240.74/17,020.50
  6. Step 6: Final answer
    x = 9,959.24

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1.5x scale

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.