Home / 20,017.11-30,029.96-5,978.25

Finding the Fourth Proportional to 20,017.11, 30,029.96 and 5,978.25

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Solution

The fourth proportional to 20,017.11, 30,029.96 and 5,978.25 is: 8,968.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,017.11 : 30,029.96 = 5,978.25 : x
  2. Step 2: Convert to fraction form
    20,017.11/30,029.96 = 5,978.25/x
  3. Step 3: Cross multiply
    20,017.11x = 30,029.96 × 5,978.25
  4. Step 4: Simplify right side
    20,017.11x = 179,526,578.48
  5. Step 5: Solve for x
    x = 179,526,578.48/20,017.11
  6. Step 6: Final answer
    x = 8,968.66

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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.