Home / 20,085.14-30,129.24-6,758.19

Finding the Fourth Proportional to 20,085.14, 30,129.24 and 6,758.19

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Solution

The fourth proportional to 20,085.14, 30,129.24 and 6,758.19 is: 10,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,085.14 : 30,129.24 = 6,758.19 : x
  2. Step 2: Convert to fraction form
    20,085.14/30,129.24 = 6,758.19/x
  3. Step 3: Cross multiply
    20,085.14x = 30,129.24 × 6,758.19
  4. Step 4: Simplify right side
    20,085.14x = 203,619,128.48
  5. Step 5: Solve for x
    x = 203,619,128.48/20,085.14
  6. Step 6: Final answer
    x = 10,137.80

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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.