Home / 20,176.97-30,266.97-5,385.56

Finding the Fourth Proportional to 20,176.97, 30,266.97 and 5,385.56

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Solution

The fourth proportional to 20,176.97, 30,266.97 and 5,385.56 is: 8,078.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,176.97 : 30,266.97 = 5,385.56 : x
  2. Step 2: Convert to fraction form
    20,176.97/30,266.97 = 5,385.56/x
  3. Step 3: Cross multiply
    20,176.97x = 30,266.97 × 5,385.56
  4. Step 4: Simplify right side
    20,176.97x = 163,004,411.42
  5. Step 5: Solve for x
    x = 163,004,411.42/20,176.97
  6. Step 6: Final answer
    x = 8,078.74

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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.