Home / 28,286.57-42,367.54-18,882.54

Finding the Fourth Proportional to 28,286.57, 42,367.54 and 18,882.54

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Solution

The fourth proportional to 28,286.57, 42,367.54 and 18,882.54 is: 28,282.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,286.57 : 42,367.54 = 18,882.54 : x
  2. Step 2: Convert to fraction form
    28,286.57/42,367.54 = 18,882.54/x
  3. Step 3: Cross multiply
    28,286.57x = 42,367.54 × 18,882.54
  4. Step 4: Simplify right side
    28,286.57x = 800,006,955.77
  5. Step 5: Solve for x
    x = 800,006,955.77/28,286.57
  6. Step 6: Final answer
    x = 28,282.22

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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.