Home / 20,139.10-30,179.85-14,832.70

Finding the Fourth Proportional to 20,139.10, 30,179.85 and 14,832.70

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Solution

The fourth proportional to 20,139.10, 30,179.85 and 14,832.70 is: 22,227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139.10 : 30,179.85 = 14,832.70 : x
  2. Step 2: Convert to fraction form
    20,139.10/30,179.85 = 14,832.70/x
  3. Step 3: Cross multiply
    20,139.10x = 30,179.85 × 14,832.70
  4. Step 4: Simplify right side
    20,139.10x = 447,648,661.10
  5. Step 5: Solve for x
    x = 447,648,661.10/20,139.10
  6. Step 6: Final answer
    x = 22,227.84

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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.