Home / 21,778.74-30,054.44-11,842.74

Finding the Fourth Proportional to 21,778.74, 30,054.44 and 11,842.74

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Solution

The fourth proportional to 21,778.74, 30,054.44 and 11,842.74 is: 16,342.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,778.74 : 30,054.44 = 11,842.74 : x
  2. Step 2: Convert to fraction form
    21,778.74/30,054.44 = 11,842.74/x
  3. Step 3: Cross multiply
    21,778.74x = 30,054.44 × 11,842.74
  4. Step 4: Simplify right side
    21,778.74x = 355,926,918.77
  5. Step 5: Solve for x
    x = 355,926,918.77/21,778.74
  6. Step 6: Final answer
    x = 16,342.86

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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.