Home / 19,621.64-27,083.70-11,243.72

Finding the Fourth Proportional to 19,621.64, 27,083.70 and 11,243.72

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Solution

The fourth proportional to 19,621.64, 27,083.70 and 11,243.72 is: 15,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,621.64 : 27,083.70 = 11,243.72 : x
  2. Step 2: Convert to fraction form
    19,621.64/27,083.70 = 11,243.72/x
  3. Step 3: Cross multiply
    19,621.64x = 27,083.70 × 11,243.72
  4. Step 4: Simplify right side
    19,621.64x = 304,521,539.36
  5. Step 5: Solve for x
    x = 304,521,539.36/19,621.64
  6. Step 6: Final answer
    x = 15,519.68

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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.