Home / 20,001.75-27,602.42-11,169.75

Finding the Fourth Proportional to 20,001.75, 27,602.42 and 11,169.75

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Solution

The fourth proportional to 20,001.75, 27,602.42 and 11,169.75 is: 15,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,001.75 : 27,602.42 = 11,169.75 : x
  2. Step 2: Convert to fraction form
    20,001.75/27,602.42 = 11,169.75/x
  3. Step 3: Cross multiply
    20,001.75x = 27,602.42 × 11,169.75
  4. Step 4: Simplify right side
    20,001.75x = 308,312,130.80
  5. Step 5: Solve for x
    x = 308,312,130.80/20,001.75
  6. Step 6: Final answer
    x = 15,414.26

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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.