Home / 20,158-27,818.04-11,774.56

Finding the Fourth Proportional to 20,158, 27,818.04 and 11,774.56

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Solution

The fourth proportional to 20,158, 27,818.04 and 11,774.56 is: 16,248.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158 : 27,818.04 = 11,774.56 : x
  2. Step 2: Convert to fraction form
    20,158/27,818.04 = 11,774.56/x
  3. Step 3: Cross multiply
    20,158x = 27,818.04 × 11,774.56
  4. Step 4: Simplify right side
    20,158x = 327,545,181.06
  5. Step 5: Solve for x
    x = 327,545,181.06/20,158
  6. Step 6: Final answer
    x = 16,248.89

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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.