Home / 20,435.39-30,650.73-7,105.82

Finding the Fourth Proportional to 20,435.39, 30,650.73 and 7,105.82

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Solution

The fourth proportional to 20,435.39, 30,650.73 and 7,105.82 is: 10,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.39 : 30,650.73 = 7,105.82 : x
  2. Step 2: Convert to fraction form
    20,435.39/30,650.73 = 7,105.82/x
  3. Step 3: Cross multiply
    20,435.39x = 30,650.73 × 7,105.82
  4. Step 4: Simplify right side
    20,435.39x = 217,798,416.99
  5. Step 5: Solve for x
    x = 217,798,416.99/20,435.39
  6. Step 6: Final answer
    x = 10,657.91

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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.