Home / 18,725.28-28,087.91-5,577.31

Finding the Fourth Proportional to 18,725.28, 28,087.91 and 5,577.31

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Solution

The fourth proportional to 18,725.28, 28,087.91 and 5,577.31 is: 8,365.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.28 : 28,087.91 = 5,577.31 : x
  2. Step 2: Convert to fraction form
    18,725.28/28,087.91 = 5,577.31/x
  3. Step 3: Cross multiply
    18,725.28x = 28,087.91 × 5,577.31
  4. Step 4: Simplify right side
    18,725.28x = 156,654,882.84
  5. Step 5: Solve for x
    x = 156,654,882.84/18,725.28
  6. Step 6: Final answer
    x = 8,365.96

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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.