Home / 20,494.19-28,097.64-20,120.58

Finding the Fourth Proportional to 20,494.19, 28,097.64 and 20,120.58

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Solution

The fourth proportional to 20,494.19, 28,097.64 and 20,120.58 is: 27,585.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.19 : 28,097.64 = 20,120.58 : x
  2. Step 2: Convert to fraction form
    20,494.19/28,097.64 = 20,120.58/x
  3. Step 3: Cross multiply
    20,494.19x = 28,097.64 × 20,120.58
  4. Step 4: Simplify right side
    20,494.19x = 565,340,813.43
  5. Step 5: Solve for x
    x = 565,340,813.43/20,494.19
  6. Step 6: Final answer
    x = 27,585.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.