Home / 20,020.43-27,628.53-11,636.93

Finding the Fourth Proportional to 20,020.43, 27,628.53 and 11,636.93

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Solution

The fourth proportional to 20,020.43, 27,628.53 and 11,636.93 is: 16,059.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.43 : 27,628.53 = 11,636.93 : x
  2. Step 2: Convert to fraction form
    20,020.43/27,628.53 = 11,636.93/x
  3. Step 3: Cross multiply
    20,020.43x = 27,628.53 × 11,636.93
  4. Step 4: Simplify right side
    20,020.43x = 321,511,269.61
  5. Step 5: Solve for x
    x = 321,511,269.61/20,020.43
  6. Step 6: Final answer
    x = 16,059.16

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1.5x scale

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.