Home / 20,016.95-30,029.67-5,978.07

Finding the Fourth Proportional to 20,016.95, 30,029.67 and 5,978.07

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Solution

The fourth proportional to 20,016.95, 30,029.67 and 5,978.07 is: 8,968.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,016.95 : 30,029.67 = 5,978.07 : x
  2. Step 2: Convert to fraction form
    20,016.95/30,029.67 = 5,978.07/x
  3. Step 3: Cross multiply
    20,016.95x = 30,029.67 × 5,978.07
  4. Step 4: Simplify right side
    20,016.95x = 179,519,469.34
  5. Step 5: Solve for x
    x = 179,519,469.34/20,016.95
  6. Step 6: Final answer
    x = 8,968.38

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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.