Home / 20,376.61-30,558.69-14,091.88

Finding the Fourth Proportional to 20,376.61, 30,558.69 and 14,091.88

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Solution

The fourth proportional to 20,376.61, 30,558.69 and 14,091.88 is: 21,133.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,376.61 : 30,558.69 = 14,091.88 : x
  2. Step 2: Convert to fraction form
    20,376.61/30,558.69 = 14,091.88/x
  3. Step 3: Cross multiply
    20,376.61x = 30,558.69 × 14,091.88
  4. Step 4: Simplify right side
    20,376.61x = 430,629,392.44
  5. Step 5: Solve for x
    x = 430,629,392.44/20,376.61
  6. Step 6: Final answer
    x = 21,133.51

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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.