Home / 20,279.25-30,420.26-6,238.41

Finding the Fourth Proportional to 20,279.25, 30,420.26 and 6,238.41

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Solution

The fourth proportional to 20,279.25, 30,420.26 and 6,238.41 is: 9,358.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,279.25 : 30,420.26 = 6,238.41 : x
  2. Step 2: Convert to fraction form
    20,279.25/30,420.26 = 6,238.41/x
  3. Step 3: Cross multiply
    20,279.25x = 30,420.26 × 6,238.41
  4. Step 4: Simplify right side
    20,279.25x = 189,774,022.99
  5. Step 5: Solve for x
    x = 189,774,022.99/20,279.25
  6. Step 6: Final answer
    x = 9,358.04

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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.