Home / 19,956.11-27,542.63-11,890.13

Finding the Fourth Proportional to 19,956.11, 27,542.63 and 11,890.13

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Solution

The fourth proportional to 19,956.11, 27,542.63 and 11,890.13 is: 16,410.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,956.11 : 27,542.63 = 11,890.13 : x
  2. Step 2: Convert to fraction form
    19,956.11/27,542.63 = 11,890.13/x
  3. Step 3: Cross multiply
    19,956.11x = 27,542.63 × 11,890.13
  4. Step 4: Simplify right side
    19,956.11x = 327,485,343.25
  5. Step 5: Solve for x
    x = 327,485,343.25/19,956.11
  6. Step 6: Final answer
    x = 16,410.28

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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.