Home / 20,301.88-27,984.84-18,672.64

Finding the Fourth Proportional to 20,301.88, 27,984.84 and 18,672.64

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Solution

The fourth proportional to 20,301.88, 27,984.84 and 18,672.64 is: 25,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.88 : 27,984.84 = 18,672.64 : x
  2. Step 2: Convert to fraction form
    20,301.88/27,984.84 = 18,672.64/x
  3. Step 3: Cross multiply
    20,301.88x = 27,984.84 × 18,672.64
  4. Step 4: Simplify right side
    20,301.88x = 522,550,842.78
  5. Step 5: Solve for x
    x = 522,550,842.78/20,301.88
  6. Step 6: Final answer
    x = 25,739.04

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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.