Home / 22,051.58-30,431.36-11,980.04

Finding the Fourth Proportional to 22,051.58, 30,431.36 and 11,980.04

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Solution

The fourth proportional to 22,051.58, 30,431.36 and 11,980.04 is: 16,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.58 : 30,431.36 = 11,980.04 : x
  2. Step 2: Convert to fraction form
    22,051.58/30,431.36 = 11,980.04/x
  3. Step 3: Cross multiply
    22,051.58x = 30,431.36 × 11,980.04
  4. Step 4: Simplify right side
    22,051.58x = 364,568,787.85
  5. Step 5: Solve for x
    x = 364,568,787.85/22,051.58
  6. Step 6: Final answer
    x = 16,532.55

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Double scale
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Similar ratio
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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.