Home / 20,076.08-30,121.10-8,983.94

Finding the Fourth Proportional to 20,076.08, 30,121.10 and 8,983.94

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Solution

The fourth proportional to 20,076.08, 30,121.10 and 8,983.94 is: 13,479.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,076.08 : 30,121.10 = 8,983.94 : x
  2. Step 2: Convert to fraction form
    20,076.08/30,121.10 = 8,983.94/x
  3. Step 3: Cross multiply
    20,076.08x = 30,121.10 × 8,983.94
  4. Step 4: Simplify right side
    20,076.08x = 270,605,959.61
  5. Step 5: Solve for x
    x = 270,605,959.61/20,076.08
  6. Step 6: Final answer
    x = 13,479.03

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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.