Home / 19,731.41-27,228.96-10,778.97

Finding the Fourth Proportional to 19,731.41, 27,228.96 and 10,778.97

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Solution

The fourth proportional to 19,731.41, 27,228.96 and 10,778.97 is: 14,874.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,731.41 : 27,228.96 = 10,778.97 : x
  2. Step 2: Convert to fraction form
    19,731.41/27,228.96 = 10,778.97/x
  3. Step 3: Cross multiply
    19,731.41x = 27,228.96 × 10,778.97
  4. Step 4: Simplify right side
    19,731.41x = 293,500,142.97
  5. Step 5: Solve for x
    x = 293,500,142.97/19,731.41
  6. Step 6: Final answer
    x = 14,874.77

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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.