Home / 20,628.06-28,489.96-13,941.34

Finding the Fourth Proportional to 20,628.06, 28,489.96 and 13,941.34

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Solution

The fourth proportional to 20,628.06, 28,489.96 and 13,941.34 is: 19,254.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.06 : 28,489.96 = 13,941.34 : x
  2. Step 2: Convert to fraction form
    20,628.06/28,489.96 = 13,941.34/x
  3. Step 3: Cross multiply
    20,628.06x = 28,489.96 × 13,941.34
  4. Step 4: Simplify right side
    20,628.06x = 397,188,218.95
  5. Step 5: Solve for x
    x = 397,188,218.95/20,628.06
  6. Step 6: Final answer
    x = 19,254.75

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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.