Home / 20,333.72-28,058.58-11,836.96

Finding the Fourth Proportional to 20,333.72, 28,058.58 and 11,836.96

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Solution

The fourth proportional to 20,333.72, 28,058.58 and 11,836.96 is: 16,333.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,333.72 : 28,058.58 = 11,836.96 : x
  2. Step 2: Convert to fraction form
    20,333.72/28,058.58 = 11,836.96/x
  3. Step 3: Cross multiply
    20,333.72x = 28,058.58 × 11,836.96
  4. Step 4: Simplify right side
    20,333.72x = 332,128,289.12
  5. Step 5: Solve for x
    x = 332,128,289.12/20,333.72
  6. Step 6: Final answer
    x = 16,333.87

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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.