Home / 20,619.32-30,928.98-11,848.64

Finding the Fourth Proportional to 20,619.32, 30,928.98 and 11,848.64

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Solution

The fourth proportional to 20,619.32, 30,928.98 and 11,848.64 is: 17,772.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,619.32 : 30,928.98 = 11,848.64 : x
  2. Step 2: Convert to fraction form
    20,619.32/30,928.98 = 11,848.64/x
  3. Step 3: Cross multiply
    20,619.32x = 30,928.98 × 11,848.64
  4. Step 4: Simplify right side
    20,619.32x = 366,466,194.94
  5. Step 5: Solve for x
    x = 366,466,194.94/20,619.32
  6. Step 6: Final answer
    x = 17,772.96

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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.