Home / 20,203.60-30,305.41-5,412.14

Finding the Fourth Proportional to 20,203.60, 30,305.41 and 5,412.14

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Solution

The fourth proportional to 20,203.60, 30,305.41 and 5,412.14 is: 8,118.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,203.60 : 30,305.41 = 5,412.14 : x
  2. Step 2: Convert to fraction form
    20,203.60/30,305.41 = 5,412.14/x
  3. Step 3: Cross multiply
    20,203.60x = 30,305.41 × 5,412.14
  4. Step 4: Simplify right side
    20,203.60x = 164,017,121.68
  5. Step 5: Solve for x
    x = 164,017,121.68/20,203.60
  6. Step 6: Final answer
    x = 8,118.21

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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.