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Finding the Fourth Proportional to 20,035, 27,649.58 and 11,203

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Solution

The fourth proportional to 20,035, 27,649.58 and 11,203 is: 15,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,035 : 27,649.58 = 11,203 : x
  2. Step 2: Convert to fraction form
    20,035/27,649.58 = 11,203/x
  3. Step 3: Cross multiply
    20,035x = 27,649.58 × 11,203
  4. Step 4: Simplify right side
    20,035x = 309,758,244.74
  5. Step 5: Solve for x
    x = 309,758,244.74/20,035
  6. Step 6: Final answer
    x = 15,460.86

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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.