Home / 20,205.06-30,288.15-10,348.98

Finding the Fourth Proportional to 20,205.06, 30,288.15 and 10,348.98

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Solution

The fourth proportional to 20,205.06, 30,288.15 and 10,348.98 is: 15,513.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,205.06 : 30,288.15 = 10,348.98 : x
  2. Step 2: Convert to fraction form
    20,205.06/30,288.15 = 10,348.98/x
  3. Step 3: Cross multiply
    20,205.06x = 30,288.15 × 10,348.98
  4. Step 4: Simplify right side
    20,205.06x = 313,451,458.59
  5. Step 5: Solve for x
    x = 313,451,458.59/20,205.06
  6. Step 6: Final answer
    x = 15,513.51

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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.