Home / 22,051.44-30,430.86-11,979.81

Finding the Fourth Proportional to 22,051.44, 30,430.86 and 11,979.81

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Solution

The fourth proportional to 22,051.44, 30,430.86 and 11,979.81 is: 16,532.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,051.44 : 30,430.86 = 11,979.81 : x
  2. Step 2: Convert to fraction form
    22,051.44/30,430.86 = 11,979.81/x
  3. Step 3: Cross multiply
    22,051.44x = 30,430.86 × 11,979.81
  4. Step 4: Simplify right side
    22,051.44x = 364,555,920.94
  5. Step 5: Solve for x
    x = 364,555,920.94/22,051.44
  6. Step 6: Final answer
    x = 16,532.07

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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.