Home / 19,903.43-27,478.11-13,198.17

Finding the Fourth Proportional to 19,903.43, 27,478.11 and 13,198.17

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Solution

The fourth proportional to 19,903.43, 27,478.11 and 13,198.17 is: 18,221.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,903.43 : 27,478.11 = 13,198.17 : x
  2. Step 2: Convert to fraction form
    19,903.43/27,478.11 = 13,198.17/x
  3. Step 3: Cross multiply
    19,903.43x = 27,478.11 × 13,198.17
  4. Step 4: Simplify right side
    19,903.43x = 362,660,767.06
  5. Step 5: Solve for x
    x = 362,660,767.06/19,903.43
  6. Step 6: Final answer
    x = 18,221.02

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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.