Home / 20,066.33-27,691.27-11,113.81

Finding the Fourth Proportional to 20,066.33, 27,691.27 and 11,113.81

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Solution

The fourth proportional to 20,066.33, 27,691.27 and 11,113.81 is: 15,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,066.33 : 27,691.27 = 11,113.81 : x
  2. Step 2: Convert to fraction form
    20,066.33/27,691.27 = 11,113.81/x
  3. Step 3: Cross multiply
    20,066.33x = 27,691.27 × 11,113.81
  4. Step 4: Simplify right side
    20,066.33x = 307,755,416.43
  5. Step 5: Solve for x
    x = 307,755,416.43/20,066.33
  6. Step 6: Final answer
    x = 15,336.90

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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.