Home / 20,020.83-30,028.55-5,228.55

Finding the Fourth Proportional to 20,020.83, 30,028.55 and 5,228.55

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Solution

The fourth proportional to 20,020.83, 30,028.55 and 5,228.55 is: 7,842.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,020.83 : 30,028.55 = 5,228.55 : x
  2. Step 2: Convert to fraction form
    20,020.83/30,028.55 = 5,228.55/x
  3. Step 3: Cross multiply
    20,020.83x = 30,028.55 × 5,228.55
  4. Step 4: Simplify right side
    20,020.83x = 157,005,748.96
  5. Step 5: Solve for x
    x = 157,005,748.96/20,020.83
  6. Step 6: Final answer
    x = 7,842.12

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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.