Home / 20,905.22-28,848.24-11,473.94

Finding the Fourth Proportional to 20,905.22, 28,848.24 and 11,473.94

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Solution

The fourth proportional to 20,905.22, 28,848.24 and 11,473.94 is: 15,833.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,905.22 : 28,848.24 = 11,473.94 : x
  2. Step 2: Convert to fraction form
    20,905.22/28,848.24 = 11,473.94/x
  3. Step 3: Cross multiply
    20,905.22x = 28,848.24 × 11,473.94
  4. Step 4: Simplify right side
    20,905.22x = 331,002,974.87
  5. Step 5: Solve for x
    x = 331,002,974.87/20,905.22
  6. Step 6: Final answer
    x = 15,833.51

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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.