Home / 18,977.39-28,435.96-12,714.37

Finding the Fourth Proportional to 18,977.39, 28,435.96 and 12,714.37

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Solution

The fourth proportional to 18,977.39, 28,435.96 and 12,714.37 is: 19,051.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,977.39 : 28,435.96 = 12,714.37 : x
  2. Step 2: Convert to fraction form
    18,977.39/28,435.96 = 12,714.37/x
  3. Step 3: Cross multiply
    18,977.39x = 28,435.96 × 12,714.37
  4. Step 4: Simplify right side
    18,977.39x = 361,545,261.55
  5. Step 5: Solve for x
    x = 361,545,261.55/18,977.39
  6. Step 6: Final answer
    x = 19,051.37

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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.