Home / 20,091.10-30,107.85-14,784.70

Finding the Fourth Proportional to 20,091.10, 30,107.85 and 14,784.70

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Solution

The fourth proportional to 20,091.10, 30,107.85 and 14,784.70 is: 22,155.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.10 : 30,107.85 = 14,784.70 : x
  2. Step 2: Convert to fraction form
    20,091.10/30,107.85 = 14,784.70/x
  3. Step 3: Cross multiply
    20,091.10x = 30,107.85 × 14,784.70
  4. Step 4: Simplify right side
    20,091.10x = 445,135,529.90
  5. Step 5: Solve for x
    x = 445,135,529.90/20,091.10
  6. Step 6: Final answer
    x = 22,155.86

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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.