Home / 20,078.64-27,708.73-11,126.34

Finding the Fourth Proportional to 20,078.64, 27,708.73 and 11,126.34

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Solution

The fourth proportional to 20,078.64, 27,708.73 and 11,126.34 is: 15,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,078.64 : 27,708.73 = 11,126.34 : x
  2. Step 2: Convert to fraction form
    20,078.64/27,708.73 = 11,126.34/x
  3. Step 3: Cross multiply
    20,078.64x = 27,708.73 × 11,126.34
  4. Step 4: Simplify right side
    20,078.64x = 308,296,723.13
  5. Step 5: Solve for x
    x = 308,296,723.13/20,078.64
  6. Step 6: Final answer
    x = 15,354.46

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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.