Home / 20,181.12-30,270.45-9,658.62

Finding the Fourth Proportional to 20,181.12, 30,270.45 and 9,658.62

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Solution

The fourth proportional to 20,181.12, 30,270.45 and 9,658.62 is: 14,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,181.12 : 30,270.45 = 9,658.62 : x
  2. Step 2: Convert to fraction form
    20,181.12/30,270.45 = 9,658.62/x
  3. Step 3: Cross multiply
    20,181.12x = 30,270.45 × 9,658.62
  4. Step 4: Simplify right side
    20,181.12x = 292,370,773.78
  5. Step 5: Solve for x
    x = 292,370,773.78/20,181.12
  6. Step 6: Final answer
    x = 14,487.34

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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.