Home / 18,725.92-28,065.30-16,380.34

Finding the Fourth Proportional to 18,725.92, 28,065.30 and 16,380.34

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Solution

The fourth proportional to 18,725.92, 28,065.30 and 16,380.34 is: 24,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.92 : 28,065.30 = 16,380.34 : x
  2. Step 2: Convert to fraction form
    18,725.92/28,065.30 = 16,380.34/x
  3. Step 3: Cross multiply
    18,725.92x = 28,065.30 × 16,380.34
  4. Step 4: Simplify right side
    18,725.92x = 459,719,156.20
  5. Step 5: Solve for x
    x = 459,719,156.20/18,725.92
  6. Step 6: Final answer
    x = 24,549.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.