Home / 20,039.67-27,645.35-12,968.37

Finding the Fourth Proportional to 20,039.67, 27,645.35 and 12,968.37

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Solution

The fourth proportional to 20,039.67, 27,645.35 and 12,968.37 is: 17,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,039.67 : 27,645.35 = 12,968.37 : x
  2. Step 2: Convert to fraction form
    20,039.67/27,645.35 = 12,968.37/x
  3. Step 3: Cross multiply
    20,039.67x = 27,645.35 × 12,968.37
  4. Step 4: Simplify right side
    20,039.67x = 358,515,062.74
  5. Step 5: Solve for x
    x = 358,515,062.74/20,039.67
  6. Step 6: Final answer
    x = 17,890.27

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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.