Home / 20,557.38-30,833.78-5,766.87

Finding the Fourth Proportional to 20,557.38, 30,833.78 and 5,766.87

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Solution

The fourth proportional to 20,557.38, 30,833.78 and 5,766.87 is: 8,649.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,557.38 : 30,833.78 = 5,766.87 : x
  2. Step 2: Convert to fraction form
    20,557.38/30,833.78 = 5,766.87/x
  3. Step 3: Cross multiply
    20,557.38x = 30,833.78 × 5,766.87
  4. Step 4: Simplify right side
    20,557.38x = 177,814,372.03
  5. Step 5: Solve for x
    x = 177,814,372.03/20,557.38
  6. Step 6: Final answer
    x = 8,649.66

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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.