Home / 20,435.31-28,201.44-11,482.62

Finding the Fourth Proportional to 20,435.31, 28,201.44 and 11,482.62

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Solution

The fourth proportional to 20,435.31, 28,201.44 and 11,482.62 is: 15,846.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.31 : 28,201.44 = 11,482.62 : x
  2. Step 2: Convert to fraction form
    20,435.31/28,201.44 = 11,482.62/x
  3. Step 3: Cross multiply
    20,435.31x = 28,201.44 × 11,482.62
  4. Step 4: Simplify right side
    20,435.31x = 323,826,418.97
  5. Step 5: Solve for x
    x = 323,826,418.97/20,435.31
  6. Step 6: Final answer
    x = 15,846.42

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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.