Home / 20,394.74-28,146.04-11,442.83

Finding the Fourth Proportional to 20,394.74, 28,146.04 and 11,442.83

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Solution

The fourth proportional to 20,394.74, 28,146.04 and 11,442.83 is: 15,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,394.74 : 28,146.04 = 11,442.83 : x
  2. Step 2: Convert to fraction form
    20,394.74/28,146.04 = 11,442.83/x
  3. Step 3: Cross multiply
    20,394.74x = 28,146.04 × 11,442.83
  4. Step 4: Simplify right side
    20,394.74x = 322,070,181.56
  5. Step 5: Solve for x
    x = 322,070,181.56/20,394.74
  6. Step 6: Final answer
    x = 15,791.82

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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.