Home / 19,781.39-27,297.19-10,827.11

Finding the Fourth Proportional to 19,781.39, 27,297.19 and 10,827.11

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Solution

The fourth proportional to 19,781.39, 27,297.19 and 10,827.11 is: 14,940.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,781.39 : 27,297.19 = 10,827.11 : x
  2. Step 2: Convert to fraction form
    19,781.39/27,297.19 = 10,827.11/x
  3. Step 3: Cross multiply
    19,781.39x = 27,297.19 × 10,827.11
  4. Step 4: Simplify right side
    19,781.39x = 295,549,678.82
  5. Step 5: Solve for x
    x = 295,549,678.82/19,781.39
  6. Step 6: Final answer
    x = 14,940.79

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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.