Home / 20,088.88-27,733.68-13,725.04

Finding the Fourth Proportional to 20,088.88, 27,733.68 and 13,725.04

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Solution

The fourth proportional to 20,088.88, 27,733.68 and 13,725.04 is: 18,948.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.88 : 27,733.68 = 13,725.04 : x
  2. Step 2: Convert to fraction form
    20,088.88/27,733.68 = 13,725.04/x
  3. Step 3: Cross multiply
    20,088.88x = 27,733.68 × 13,725.04
  4. Step 4: Simplify right side
    20,088.88x = 380,645,867.35
  5. Step 5: Solve for x
    x = 380,645,867.35/20,088.88
  6. Step 6: Final answer
    x = 18,948.09

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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.