Home / 20,431.65-28,198.96-19,097.58

Finding the Fourth Proportional to 20,431.65, 28,198.96 and 19,097.58

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Solution

The fourth proportional to 20,431.65, 28,198.96 and 19,097.58 is: 26,357.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,431.65 : 28,198.96 = 19,097.58 : x
  2. Step 2: Convert to fraction form
    20,431.65/28,198.96 = 19,097.58/x
  3. Step 3: Cross multiply
    20,431.65x = 28,198.96 × 19,097.58
  4. Step 4: Simplify right side
    20,431.65x = 538,531,894.52
  5. Step 5: Solve for x
    x = 538,531,894.52/20,431.65
  6. Step 6: Final answer
    x = 26,357.73

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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.