Home / 20,207.64-27,898.11-13,504.62

Finding the Fourth Proportional to 20,207.64, 27,898.11 and 13,504.62

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Solution

The fourth proportional to 20,207.64, 27,898.11 and 13,504.62 is: 18,644.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.64 : 27,898.11 = 13,504.62 : x
  2. Step 2: Convert to fraction form
    20,207.64/27,898.11 = 13,504.62/x
  3. Step 3: Cross multiply
    20,207.64x = 27,898.11 × 13,504.62
  4. Step 4: Simplify right side
    20,207.64x = 376,753,374.27
  5. Step 5: Solve for x
    x = 376,753,374.27/20,207.64
  6. Step 6: Final answer
    x = 18,644.11

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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.