Home / 20,902.84-31,310.34-16,967.32

Finding the Fourth Proportional to 20,902.84, 31,310.34 and 16,967.32

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Solution

The fourth proportional to 20,902.84, 31,310.34 and 16,967.32 is: 25,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,902.84 : 31,310.34 = 16,967.32 : x
  2. Step 2: Convert to fraction form
    20,902.84/31,310.34 = 16,967.32/x
  3. Step 3: Cross multiply
    20,902.84x = 31,310.34 × 16,967.32
  4. Step 4: Simplify right side
    20,902.84x = 531,252,558.09
  5. Step 5: Solve for x
    x = 531,252,558.09/20,902.84
  6. Step 6: Final answer
    x = 25,415.33

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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.