Home / 20,126.54-27,775.52-11,174.16

Finding the Fourth Proportional to 20,126.54, 27,775.52 and 11,174.16

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Solution

The fourth proportional to 20,126.54, 27,775.52 and 11,174.16 is: 15,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,126.54 : 27,775.52 = 11,174.16 : x
  2. Step 2: Convert to fraction form
    20,126.54/27,775.52 = 11,174.16/x
  3. Step 3: Cross multiply
    20,126.54x = 27,775.52 × 11,174.16
  4. Step 4: Simplify right side
    20,126.54x = 310,368,048.69
  5. Step 5: Solve for x
    x = 310,368,048.69/20,126.54
  6. Step 6: Final answer
    x = 15,420.84

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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.