Home / 20,460.64-28,286.42-20,273.83

Finding the Fourth Proportional to 20,460.64, 28,286.42 and 20,273.83

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Solution

The fourth proportional to 20,460.64, 28,286.42 and 20,273.83 is: 28,028.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,460.64 : 28,286.42 = 20,273.83 : x
  2. Step 2: Convert to fraction form
    20,460.64/28,286.42 = 20,273.83/x
  3. Step 3: Cross multiply
    20,460.64x = 28,286.42 × 20,273.83
  4. Step 4: Simplify right side
    20,460.64x = 573,474,070.39
  5. Step 5: Solve for x
    x = 573,474,070.39/20,460.64
  6. Step 6: Final answer
    x = 28,028.17

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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.