Home / 74,286.85-111,430.52-18,882.85

Finding the Fourth Proportional to 74,286.85, 111,430.52 and 18,882.85

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Solution

The fourth proportional to 74,286.85, 111,430.52 and 18,882.85 is: 28,324.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,286.85 : 111,430.52 = 18,882.85 : x
  2. Step 2: Convert to fraction form
    74,286.85/111,430.52 = 18,882.85/x
  3. Step 3: Cross multiply
    74,286.85x = 111,430.52 × 18,882.85
  4. Step 4: Simplify right side
    74,286.85x = 2,104,125,794.58
  5. Step 5: Solve for x
    x = 2,104,125,794.58/74,286.85
  6. Step 6: Final answer
    x = 28,324.34

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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.