Home / 20,146.56-30,209.41-9,043.69

Finding the Fourth Proportional to 20,146.56, 30,209.41 and 9,043.69

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Solution

The fourth proportional to 20,146.56, 30,209.41 and 9,043.69 is: 13,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,146.56 : 30,209.41 = 9,043.69 : x
  2. Step 2: Convert to fraction form
    20,146.56/30,209.41 = 9,043.69/x
  3. Step 3: Cross multiply
    20,146.56x = 30,209.41 × 9,043.69
  4. Step 4: Simplify right side
    20,146.56x = 273,204,342.86
  5. Step 5: Solve for x
    x = 273,204,342.86/20,146.56
  6. Step 6: Final answer
    x = 13,560.84

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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.