Home / 22,050.63-30,429.88-11,979.09

Finding the Fourth Proportional to 22,050.63, 30,429.88 and 11,979.09

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Solution

The fourth proportional to 22,050.63, 30,429.88 and 11,979.09 is: 16,531.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,050.63 : 30,429.88 = 11,979.09 : x
  2. Step 2: Convert to fraction form
    22,050.63/30,429.88 = 11,979.09/x
  3. Step 3: Cross multiply
    22,050.63x = 30,429.88 × 11,979.09
  4. Step 4: Simplify right side
    22,050.63x = 364,522,241.26
  5. Step 5: Solve for x
    x = 364,522,241.26/22,050.63
  6. Step 6: Final answer
    x = 16,531.15

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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.