Home / 20,654.55-30,932.57-11,280.56

Finding the Fourth Proportional to 20,654.55, 30,932.57 and 11,280.56

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Solution

The fourth proportional to 20,654.55, 30,932.57 and 11,280.56 is: 16,893.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.55 : 30,932.57 = 11,280.56 : x
  2. Step 2: Convert to fraction form
    20,654.55/30,932.57 = 11,280.56/x
  3. Step 3: Cross multiply
    20,654.55x = 30,932.57 × 11,280.56
  4. Step 4: Simplify right side
    20,654.55x = 348,936,500.77
  5. Step 5: Solve for x
    x = 348,936,500.77/20,654.55
  6. Step 6: Final answer
    x = 16,893.93

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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.