Home / 20,817.42-31,226.10-5,235.04

Finding the Fourth Proportional to 20,817.42, 31,226.10 and 5,235.04

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Solution

The fourth proportional to 20,817.42, 31,226.10 and 5,235.04 is: 7,852.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817.42 : 31,226.10 = 5,235.04 : x
  2. Step 2: Convert to fraction form
    20,817.42/31,226.10 = 5,235.04/x
  3. Step 3: Cross multiply
    20,817.42x = 31,226.10 × 5,235.04
  4. Step 4: Simplify right side
    20,817.42x = 163,469,882.54
  5. Step 5: Solve for x
    x = 163,469,882.54/20,817.42
  6. Step 6: Final answer
    x = 7,852.55

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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.