Home / 20,286.45-28,014.46-19,182.02

Finding the Fourth Proportional to 20,286.45, 28,014.46 and 19,182.02

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Solution

The fourth proportional to 20,286.45, 28,014.46 and 19,182.02 is: 26,489.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,286.45 : 28,014.46 = 19,182.02 : x
  2. Step 2: Convert to fraction form
    20,286.45/28,014.46 = 19,182.02/x
  3. Step 3: Cross multiply
    20,286.45x = 28,014.46 × 19,182.02
  4. Step 4: Simplify right side
    20,286.45x = 537,373,743.98
  5. Step 5: Solve for x
    x = 537,373,743.98/20,286.45
  6. Step 6: Final answer
    x = 26,489.29

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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.