Home / 50,019.20-75,028.68-20,430.44

Finding the Fourth Proportional to 50,019.20, 75,028.68 and 20,430.44

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Solution

The fourth proportional to 50,019.20, 75,028.68 and 20,430.44 is: 30,645.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,019.20 : 75,028.68 = 20,430.44 : x
  2. Step 2: Convert to fraction form
    50,019.20/75,028.68 = 20,430.44/x
  3. Step 3: Cross multiply
    50,019.20x = 75,028.68 × 20,430.44
  4. Step 4: Simplify right side
    50,019.20x = 1,532,868,945.02
  5. Step 5: Solve for x
    x = 1,532,868,945.02/50,019.20
  6. Step 6: Final answer
    x = 30,645.61

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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.