Home / 20,097.09-30,145.77-5,305.89

Finding the Fourth Proportional to 20,097.09, 30,145.77 and 5,305.89

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Solution

The fourth proportional to 20,097.09, 30,145.77 and 5,305.89 is: 7,958.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,097.09 : 30,145.77 = 5,305.89 : x
  2. Step 2: Convert to fraction form
    20,097.09/30,145.77 = 5,305.89/x
  3. Step 3: Cross multiply
    20,097.09x = 30,145.77 × 5,305.89
  4. Step 4: Simplify right side
    20,097.09x = 159,950,139.59
  5. Step 5: Solve for x
    x = 159,950,139.59/20,097.09
  6. Step 6: Final answer
    x = 7,958.87

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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.