Home / 20,649.55-30,975.50-5,857.30

Finding the Fourth Proportional to 20,649.55, 30,975.50 and 5,857.30

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Solution

The fourth proportional to 20,649.55, 30,975.50 and 5,857.30 is: 8,786.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,649.55 : 30,975.50 = 5,857.30 : x
  2. Step 2: Convert to fraction form
    20,649.55/30,975.50 = 5,857.30/x
  3. Step 3: Cross multiply
    20,649.55x = 30,975.50 × 5,857.30
  4. Step 4: Simplify right side
    20,649.55x = 181,432,796.15
  5. Step 5: Solve for x
    x = 181,432,796.15/20,649.55
  6. Step 6: Final answer
    x = 8,786.28

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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.