Home / 20,205.94-30,308.20-6,165.40

Finding the Fourth Proportional to 20,205.94, 30,308.20 and 6,165.40

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Solution

The fourth proportional to 20,205.94, 30,308.20 and 6,165.40 is: 9,247.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.94 : 30,308.20 = 6,165.40 : x
  2. Step 2: Convert to fraction form
    20,205.94/30,308.20 = 6,165.40/x
  3. Step 3: Cross multiply
    20,205.94x = 30,308.20 × 6,165.40
  4. Step 4: Simplify right side
    20,205.94x = 186,862,145.45
  5. Step 5: Solve for x
    x = 186,862,145.45/20,205.94
  6. Step 6: Final answer
    x = 9,247.88

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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.