Home / 20,101.72-27,742.25-11,604.12

Finding the Fourth Proportional to 20,101.72, 27,742.25 and 11,604.12

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Solution

The fourth proportional to 20,101.72, 27,742.25 and 11,604.12 is: 16,014.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,101.72 : 27,742.25 = 11,604.12 : x
  2. Step 2: Convert to fraction form
    20,101.72/27,742.25 = 11,604.12/x
  3. Step 3: Cross multiply
    20,101.72x = 27,742.25 × 11,604.12
  4. Step 4: Simplify right side
    20,101.72x = 321,924,398.07
  5. Step 5: Solve for x
    x = 321,924,398.07/20,101.72
  6. Step 6: Final answer
    x = 16,014.77

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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.