Home / 20,061.75-27,684.84-11,109.22

Finding the Fourth Proportional to 20,061.75, 27,684.84 and 11,109.22

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Solution

The fourth proportional to 20,061.75, 27,684.84 and 11,109.22 is: 15,330.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.75 : 27,684.84 = 11,109.22 : x
  2. Step 2: Convert to fraction form
    20,061.75/27,684.84 = 11,109.22/x
  3. Step 3: Cross multiply
    20,061.75x = 27,684.84 × 11,109.22
  4. Step 4: Simplify right side
    20,061.75x = 307,556,978.22
  5. Step 5: Solve for x
    x = 307,556,978.22/20,061.75
  6. Step 6: Final answer
    x = 15,330.52

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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.