Home / 20,908.41-28,853.01-11,476.96

Finding the Fourth Proportional to 20,908.41, 28,853.01 and 11,476.96

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Solution

The fourth proportional to 20,908.41, 28,853.01 and 11,476.96 is: 15,837.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,908.41 : 28,853.01 = 11,476.96 : x
  2. Step 2: Convert to fraction form
    20,908.41/28,853.01 = 11,476.96/x
  3. Step 3: Cross multiply
    20,908.41x = 28,853.01 × 11,476.96
  4. Step 4: Simplify right side
    20,908.41x = 331,144,841.65
  5. Step 5: Solve for x
    x = 331,144,841.65/20,908.41
  6. Step 6: Final answer
    x = 15,837.88

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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.