Home / 20,126.42-27,775.73-11,174.08

Finding the Fourth Proportional to 20,126.42, 27,775.73 and 11,174.08

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Solution

The fourth proportional to 20,126.42, 27,775.73 and 11,174.08 is: 15,420.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.42 : 27,775.73 = 11,174.08 : x
  2. Step 2: Convert to fraction form
    20,126.42/27,775.73 = 11,174.08/x
  3. Step 3: Cross multiply
    20,126.42x = 27,775.73 × 11,174.08
  4. Step 4: Simplify right side
    20,126.42x = 310,368,173.21
  5. Step 5: Solve for x
    x = 310,368,173.21/20,126.42
  6. Step 6: Final answer
    x = 15,420.93

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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.