Home / 20,555.59-30,832.30-5,765.53

Finding the Fourth Proportional to 20,555.59, 30,832.30 and 5,765.53

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Solution

The fourth proportional to 20,555.59, 30,832.30 and 5,765.53 is: 8,647.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,555.59 : 30,832.30 = 5,765.53 : x
  2. Step 2: Convert to fraction form
    20,555.59/30,832.30 = 5,765.53/x
  3. Step 3: Cross multiply
    20,555.59x = 30,832.30 × 5,765.53
  4. Step 4: Simplify right side
    20,555.59x = 177,764,550.62
  5. Step 5: Solve for x
    x = 177,764,550.62/20,555.59
  6. Step 6: Final answer
    x = 8,647.99

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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.