Home / 20,855.05-31,253.41-9,734.15

Finding the Fourth Proportional to 20,855.05, 31,253.41 and 9,734.15

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Solution

The fourth proportional to 20,855.05, 31,253.41 and 9,734.15 is: 14,587.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,855.05 : 31,253.41 = 9,734.15 : x
  2. Step 2: Convert to fraction form
    20,855.05/31,253.41 = 9,734.15/x
  3. Step 3: Cross multiply
    20,855.05x = 31,253.41 × 9,734.15
  4. Step 4: Simplify right side
    20,855.05x = 304,225,380.95
  5. Step 5: Solve for x
    x = 304,225,380.95/20,855.05
  6. Step 6: Final answer
    x = 14,587.61

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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.