Home / 20,366.82-28,107.18-12,714.63

Finding the Fourth Proportional to 20,366.82, 28,107.18 and 12,714.63

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Solution

The fourth proportional to 20,366.82, 28,107.18 and 12,714.63 is: 17,546.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,366.82 : 28,107.18 = 12,714.63 : x
  2. Step 2: Convert to fraction form
    20,366.82/28,107.18 = 12,714.63/x
  3. Step 3: Cross multiply
    20,366.82x = 28,107.18 × 12,714.63
  4. Step 4: Simplify right side
    20,366.82x = 357,372,450.51
  5. Step 5: Solve for x
    x = 357,372,450.51/20,366.82
  6. Step 6: Final answer
    x = 17,546.79

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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.