Home / 20,841.77-28,761.83-12,344.37

Finding the Fourth Proportional to 20,841.77, 28,761.83 and 12,344.37

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Solution

The fourth proportional to 20,841.77, 28,761.83 and 12,344.37 is: 17,035.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,841.77 : 28,761.83 = 12,344.37 : x
  2. Step 2: Convert to fraction form
    20,841.77/28,761.83 = 12,344.37/x
  3. Step 3: Cross multiply
    20,841.77x = 28,761.83 × 12,344.37
  4. Step 4: Simplify right side
    20,841.77x = 355,046,609.68
  5. Step 5: Solve for x
    x = 355,046,609.68/20,841.77
  6. Step 6: Final answer
    x = 17,035.34

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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.