Home / 18,150.33-25,002.78-15,452.88

Finding the Fourth Proportional to 18,150.33, 25,002.78 and 15,452.88

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Solution

The fourth proportional to 18,150.33, 25,002.78 and 15,452.88 is: 21,286.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,150.33 : 25,002.78 = 15,452.88 : x
  2. Step 2: Convert to fraction form
    18,150.33/25,002.78 = 15,452.88/x
  3. Step 3: Cross multiply
    18,150.33x = 25,002.78 × 15,452.88
  4. Step 4: Simplify right side
    18,150.33x = 386,364,807.30
  5. Step 5: Solve for x
    x = 386,364,807.30/18,150.33
  6. Step 6: Final answer
    x = 21,286.93

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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.