Home / 20,286.60-30,401.10-14,980.20

Finding the Fourth Proportional to 20,286.60, 30,401.10 and 14,980.20

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Solution

The fourth proportional to 20,286.60, 30,401.10 and 14,980.20 is: 22,449.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.60 : 30,401.10 = 14,980.20 : x
  2. Step 2: Convert to fraction form
    20,286.60/30,401.10 = 14,980.20/x
  3. Step 3: Cross multiply
    20,286.60x = 30,401.10 × 14,980.20
  4. Step 4: Simplify right side
    20,286.60x = 455,414,558.22
  5. Step 5: Solve for x
    x = 455,414,558.22/20,286.60
  6. Step 6: Final answer
    x = 22,449.03

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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.