Home / 27,857.93-38,444.90-19,919.12

Finding the Fourth Proportional to 27,857.93, 38,444.90 and 19,919.12

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Solution

The fourth proportional to 27,857.93, 38,444.90 and 19,919.12 is: 27,489.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,857.93 : 38,444.90 = 19,919.12 : x
  2. Step 2: Convert to fraction form
    27,857.93/38,444.90 = 19,919.12/x
  3. Step 3: Cross multiply
    27,857.93x = 38,444.90 × 19,919.12
  4. Step 4: Simplify right side
    27,857.93x = 765,788,284.67
  5. Step 5: Solve for x
    x = 765,788,284.67/27,857.93
  6. Step 6: Final answer
    x = 27,489.06

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Half scale
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Double scale
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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.