Home / 20,061.72-27,684.83-11,109.03

Finding the Fourth Proportional to 20,061.72, 27,684.83 and 11,109.03

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Solution

The fourth proportional to 20,061.72, 27,684.83 and 11,109.03 is: 15,330.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,061.72 : 27,684.83 = 11,109.03 : x
  2. Step 2: Convert to fraction form
    20,061.72/27,684.83 = 11,109.03/x
  3. Step 3: Cross multiply
    20,061.72x = 27,684.83 × 11,109.03
  4. Step 4: Simplify right side
    20,061.72x = 307,551,607.01
  5. Step 5: Solve for x
    x = 307,551,607.01/20,061.72
  6. Step 6: Final answer
    x = 15,330.27

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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.