Home / 20,410.97-30,625.88-9,321.06

Finding the Fourth Proportional to 20,410.97, 30,625.88 and 9,321.06

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Solution

The fourth proportional to 20,410.97, 30,625.88 and 9,321.06 is: 13,985.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.97 : 30,625.88 = 9,321.06 : x
  2. Step 2: Convert to fraction form
    20,410.97/30,625.88 = 9,321.06/x
  3. Step 3: Cross multiply
    20,410.97x = 30,625.88 × 9,321.06
  4. Step 4: Simplify right side
    20,410.97x = 285,465,618.43
  5. Step 5: Solve for x
    x = 285,465,618.43/20,410.97
  6. Step 6: Final answer
    x = 13,985.89

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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.