Home / 22,051.08-30,430.53-11,979.44

Finding the Fourth Proportional to 22,051.08, 30,430.53 and 11,979.44

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Solution

The fourth proportional to 22,051.08, 30,430.53 and 11,979.44 is: 16,531.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.08 : 30,430.53 = 11,979.44 : x
  2. Step 2: Convert to fraction form
    22,051.08/30,430.53 = 11,979.44/x
  3. Step 3: Cross multiply
    22,051.08x = 30,430.53 × 11,979.44
  4. Step 4: Simplify right side
    22,051.08x = 364,540,556.15
  5. Step 5: Solve for x
    x = 364,540,556.15/22,051.08
  6. Step 6: Final answer
    x = 16,531.64

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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.