Home / 20,028.66-30,047.30-5,989.80

Finding the Fourth Proportional to 20,028.66, 30,047.30 and 5,989.80

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Solution

The fourth proportional to 20,028.66, 30,047.30 and 5,989.80 is: 8,985.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.66 : 30,047.30 = 5,989.80 : x
  2. Step 2: Convert to fraction form
    20,028.66/30,047.30 = 5,989.80/x
  3. Step 3: Cross multiply
    20,028.66x = 30,047.30 × 5,989.80
  4. Step 4: Simplify right side
    20,028.66x = 179,977,317.54
  5. Step 5: Solve for x
    x = 179,977,317.54/20,028.66
  6. Step 6: Final answer
    x = 8,985.99

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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.