Home / 19,937.88-27,513.97-11,439.81

Finding the Fourth Proportional to 19,937.88, 27,513.97 and 11,439.81

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Solution

The fourth proportional to 19,937.88, 27,513.97 and 11,439.81 is: 15,786.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,937.88 : 27,513.97 = 11,439.81 : x
  2. Step 2: Convert to fraction form
    19,937.88/27,513.97 = 11,439.81/x
  3. Step 3: Cross multiply
    19,937.88x = 27,513.97 × 11,439.81
  4. Step 4: Simplify right side
    19,937.88x = 314,754,467.08
  5. Step 5: Solve for x
    x = 314,754,467.08/19,937.88
  6. Step 6: Final answer
    x = 15,786.76

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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.