Home / 22,051.26-30,430.96-11,979.79

Finding the Fourth Proportional to 22,051.26, 30,430.96 and 11,979.79

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Solution

The fourth proportional to 22,051.26, 30,430.96 and 11,979.79 is: 16,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.26 : 30,430.96 = 11,979.79 : x
  2. Step 2: Convert to fraction form
    22,051.26/30,430.96 = 11,979.79/x
  3. Step 3: Cross multiply
    22,051.26x = 30,430.96 × 11,979.79
  4. Step 4: Simplify right side
    22,051.26x = 364,556,404.27
  5. Step 5: Solve for x
    x = 364,556,404.27/22,051.26
  6. Step 6: Final answer
    x = 16,532.23

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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.