Home / 20,619.06-30,928.60-11,848.38

Finding the Fourth Proportional to 20,619.06, 30,928.60 and 11,848.38

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Solution

The fourth proportional to 20,619.06, 30,928.60 and 11,848.38 is: 17,772.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.06 : 30,928.60 = 11,848.38 : x
  2. Step 2: Convert to fraction form
    20,619.06/30,928.60 = 11,848.38/x
  3. Step 3: Cross multiply
    20,619.06x = 30,928.60 × 11,848.38
  4. Step 4: Simplify right side
    20,619.06x = 366,453,805.67
  5. Step 5: Solve for x
    x = 366,453,805.67/20,619.06
  6. Step 6: Final answer
    x = 17,772.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.