Home / 20,156.84-27,807.46-11,769.64

Finding the Fourth Proportional to 20,156.84, 27,807.46 and 11,769.64

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Solution

The fourth proportional to 20,156.84, 27,807.46 and 11,769.64 is: 16,236.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,156.84 : 27,807.46 = 11,769.64 : x
  2. Step 2: Convert to fraction form
    20,156.84/27,807.46 = 11,769.64/x
  3. Step 3: Cross multiply
    20,156.84x = 27,807.46 × 11,769.64
  4. Step 4: Simplify right side
    20,156.84x = 327,283,793.51
  5. Step 5: Solve for x
    x = 327,283,793.51/20,156.84
  6. Step 6: Final answer
    x = 16,236.86

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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.