Home / 20,118.48-30,146.91-10,759.83

Finding the Fourth Proportional to 20,118.48, 30,146.91 and 10,759.83

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Solution

The fourth proportional to 20,118.48, 30,146.91 and 10,759.83 is: 16,123.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,118.48 : 30,146.91 = 10,759.83 : x
  2. Step 2: Convert to fraction form
    20,118.48/30,146.91 = 10,759.83/x
  3. Step 3: Cross multiply
    20,118.48x = 30,146.91 × 10,759.83
  4. Step 4: Simplify right side
    20,118.48x = 324,375,626.63
  5. Step 5: Solve for x
    x = 324,375,626.63/20,118.48
  6. Step 6: Final answer
    x = 16,123.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.