Home / 20,962.44-28,922.88-12,464.08

Finding the Fourth Proportional to 20,962.44, 28,922.88 and 12,464.08

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Solution

The fourth proportional to 20,962.44, 28,922.88 and 12,464.08 is: 17,197.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.44 : 28,922.88 = 12,464.08 : x
  2. Step 2: Convert to fraction form
    20,962.44/28,922.88 = 12,464.08/x
  3. Step 3: Cross multiply
    20,962.44x = 28,922.88 × 12,464.08
  4. Step 4: Simplify right side
    20,962.44x = 360,497,090.15
  5. Step 5: Solve for x
    x = 360,497,090.15/20,962.44
  6. Step 6: Final answer
    x = 17,197.29

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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.