Home / 20,170.53-27,819.59-13,800.92

Finding the Fourth Proportional to 20,170.53, 27,819.59 and 13,800.92

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Solution

The fourth proportional to 20,170.53, 27,819.59 and 13,800.92 is: 19,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,170.53 : 27,819.59 = 13,800.92 : x
  2. Step 2: Convert to fraction form
    20,170.53/27,819.59 = 13,800.92/x
  3. Step 3: Cross multiply
    20,170.53x = 27,819.59 × 13,800.92
  4. Step 4: Simplify right side
    20,170.53x = 383,935,727.92
  5. Step 5: Solve for x
    x = 383,935,727.92/20,170.53
  6. Step 6: Final answer
    x = 19,034.49

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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.