Home / 20,558.13-30,834.90-5,767.62

Finding the Fourth Proportional to 20,558.13, 30,834.90 and 5,767.62

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Solution

The fourth proportional to 20,558.13, 30,834.90 and 5,767.62 is: 8,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.13 : 30,834.90 = 5,767.62 : x
  2. Step 2: Convert to fraction form
    20,558.13/30,834.90 = 5,767.62/x
  3. Step 3: Cross multiply
    20,558.13x = 30,834.90 × 5,767.62
  4. Step 4: Simplify right side
    20,558.13x = 177,843,985.94
  5. Step 5: Solve for x
    x = 177,843,985.94/20,558.13
  6. Step 6: Final answer
    x = 8,650.79

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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.