Home / 19,808.68-27,335.04-11,855.28

Finding the Fourth Proportional to 19,808.68, 27,335.04 and 11,855.28

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Solution

The fourth proportional to 19,808.68, 27,335.04 and 11,855.28 is: 16,359.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,808.68 : 27,335.04 = 11,855.28 : x
  2. Step 2: Convert to fraction form
    19,808.68/27,335.04 = 11,855.28/x
  3. Step 3: Cross multiply
    19,808.68x = 27,335.04 × 11,855.28
  4. Step 4: Simplify right side
    19,808.68x = 324,064,553.01
  5. Step 5: Solve for x
    x = 324,064,553.01/19,808.68
  6. Step 6: Final answer
    x = 16,359.72

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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.