Home / 19,578.56-27,018.45-11,195.06

Finding the Fourth Proportional to 19,578.56, 27,018.45 and 11,195.06

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Solution

The fourth proportional to 19,578.56, 27,018.45 and 11,195.06 is: 15,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,578.56 : 27,018.45 = 11,195.06 : x
  2. Step 2: Convert to fraction form
    19,578.56/27,018.45 = 11,195.06/x
  3. Step 3: Cross multiply
    19,578.56x = 27,018.45 × 11,195.06
  4. Step 4: Simplify right side
    19,578.56x = 302,473,236.40
  5. Step 5: Solve for x
    x = 302,473,236.40/19,578.56
  6. Step 6: Final answer
    x = 15,449.21

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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.