Home / 20,149.05-27,819.54-12,599.04

Finding the Fourth Proportional to 20,149.05, 27,819.54 and 12,599.04

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Solution

The fourth proportional to 20,149.05, 27,819.54 and 12,599.04 is: 17,395.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,149.05 : 27,819.54 = 12,599.04 : x
  2. Step 2: Convert to fraction form
    20,149.05/27,819.54 = 12,599.04/x
  3. Step 3: Cross multiply
    20,149.05x = 27,819.54 × 12,599.04
  4. Step 4: Simplify right side
    20,149.05x = 350,499,434.25
  5. Step 5: Solve for x
    x = 350,499,434.25/20,149.05
  6. Step 6: Final answer
    x = 17,395.33

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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.