Home / 20,171.15-30,256.46-9,069.99

Finding the Fourth Proportional to 20,171.15, 30,256.46 and 9,069.99

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Solution

The fourth proportional to 20,171.15, 30,256.46 and 9,069.99 is: 13,604.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,171.15 : 30,256.46 = 9,069.99 : x
  2. Step 2: Convert to fraction form
    20,171.15/30,256.46 = 9,069.99/x
  3. Step 3: Cross multiply
    20,171.15x = 30,256.46 × 9,069.99
  4. Step 4: Simplify right side
    20,171.15x = 274,425,744.29
  5. Step 5: Solve for x
    x = 274,425,744.29/20,171.15
  6. Step 6: Final answer
    x = 13,604.87

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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.