Home / 19,811.16-27,324.30-12,643.26

Finding the Fourth Proportional to 19,811.16, 27,324.30 and 12,643.26

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Solution

The fourth proportional to 19,811.16, 27,324.30 and 12,643.26 is: 17,438.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,811.16 : 27,324.30 = 12,643.26 : x
  2. Step 2: Convert to fraction form
    19,811.16/27,324.30 = 12,643.26/x
  3. Step 3: Cross multiply
    19,811.16x = 27,324.30 × 12,643.26
  4. Step 4: Simplify right side
    19,811.16x = 345,468,229.22
  5. Step 5: Solve for x
    x = 345,468,229.22/19,811.16
  6. Step 6: Final answer
    x = 17,438.06

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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.