Home / 20,801.64-28,708.26-11,852.04

Finding the Fourth Proportional to 20,801.64, 28,708.26 and 11,852.04

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Solution

The fourth proportional to 20,801.64, 28,708.26 and 11,852.04 is: 16,356.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,801.64 : 28,708.26 = 11,852.04 : x
  2. Step 2: Convert to fraction form
    20,801.64/28,708.26 = 11,852.04/x
  3. Step 3: Cross multiply
    20,801.64x = 28,708.26 × 11,852.04
  4. Step 4: Simplify right side
    20,801.64x = 340,251,445.85
  5. Step 5: Solve for x
    x = 340,251,445.85/20,801.64
  6. Step 6: Final answer
    x = 16,356.95

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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.