Home / 20,606.91-28,441.78-11,654.79

Finding the Fourth Proportional to 20,606.91, 28,441.78 and 11,654.79

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Solution

The fourth proportional to 20,606.91, 28,441.78 and 11,654.79 is: 16,086.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606.91 : 28,441.78 = 11,654.79 : x
  2. Step 2: Convert to fraction form
    20,606.91/28,441.78 = 11,654.79/x
  3. Step 3: Cross multiply
    20,606.91x = 28,441.78 × 11,654.79
  4. Step 4: Simplify right side
    20,606.91x = 331,482,902.89
  5. Step 5: Solve for x
    x = 331,482,902.89/20,606.91
  6. Step 6: Final answer
    x = 16,086.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.