Home / 19,701.36-27,197.91-15,215.04

Finding the Fourth Proportional to 19,701.36, 27,197.91 and 15,215.04

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Solution

The fourth proportional to 19,701.36, 27,197.91 and 15,215.04 is: 21,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.36 : 27,197.91 = 15,215.04 : x
  2. Step 2: Convert to fraction form
    19,701.36/27,197.91 = 15,215.04/x
  3. Step 3: Cross multiply
    19,701.36x = 27,197.91 × 15,215.04
  4. Step 4: Simplify right side
    19,701.36x = 413,817,288.57
  5. Step 5: Solve for x
    x = 413,817,288.57/19,701.36
  6. Step 6: Final answer
    x = 21,004.50

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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.