Home / 22,115.12-33,148.35-9,620.60

Finding the Fourth Proportional to 22,115.12, 33,148.35 and 9,620.60

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Solution

The fourth proportional to 22,115.12, 33,148.35 and 9,620.60 is: 14,420.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,115.12 : 33,148.35 = 9,620.60 : x
  2. Step 2: Convert to fraction form
    22,115.12/33,148.35 = 9,620.60/x
  3. Step 3: Cross multiply
    22,115.12x = 33,148.35 × 9,620.60
  4. Step 4: Simplify right side
    22,115.12x = 318,907,016.01
  5. Step 5: Solve for x
    x = 318,907,016.01/22,115.12
  6. Step 6: Final answer
    x = 14,420.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.