Home / 20,040.95-30,064.16-8,351.44

Finding the Fourth Proportional to 20,040.95, 30,064.16 and 8,351.44

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Solution

The fourth proportional to 20,040.95, 30,064.16 and 8,351.44 is: 12,528.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,040.95 : 30,064.16 = 8,351.44 : x
  2. Step 2: Convert to fraction form
    20,040.95/30,064.16 = 8,351.44/x
  3. Step 3: Cross multiply
    20,040.95x = 30,064.16 × 8,351.44
  4. Step 4: Simplify right side
    20,040.95x = 251,078,974.11
  5. Step 5: Solve for x
    x = 251,078,974.11/20,040.95
  6. Step 6: Final answer
    x = 12,528.30

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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.