Home / 18,882.18-28,433.07-13,986.54

Finding the Fourth Proportional to 18,882.18, 28,433.07 and 13,986.54

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Solution

The fourth proportional to 18,882.18, 28,433.07 and 13,986.54 is: 21,061.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,882.18 : 28,433.07 = 13,986.54 : x
  2. Step 2: Convert to fraction form
    18,882.18/28,433.07 = 13,986.54/x
  3. Step 3: Cross multiply
    18,882.18x = 28,433.07 × 13,986.54
  4. Step 4: Simplify right side
    18,882.18x = 397,680,270.88
  5. Step 5: Solve for x
    x = 397,680,270.88/18,882.18
  6. Step 6: Final answer
    x = 21,061.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.