Home / 30,902.30-42,644.94-16,755.04

Finding the Fourth Proportional to 30,902.30, 42,644.94 and 16,755.04

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Solution

The fourth proportional to 30,902.30, 42,644.94 and 16,755.04 is: 23,121.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,902.30 : 42,644.94 = 16,755.04 : x
  2. Step 2: Convert to fraction form
    30,902.30/42,644.94 = 16,755.04/x
  3. Step 3: Cross multiply
    30,902.30x = 42,644.94 × 16,755.04
  4. Step 4: Simplify right side
    30,902.30x = 714,517,675.50
  5. Step 5: Solve for x
    x = 714,517,675.50/30,902.30
  6. Step 6: Final answer
    x = 23,121.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.