Home / 31,090.03-42,902.99-16,942.57

Finding the Fourth Proportional to 31,090.03, 42,902.99 and 16,942.57

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Solution

The fourth proportional to 31,090.03, 42,902.99 and 16,942.57 is: 23,380.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,090.03 : 42,902.99 = 16,942.57 : x
  2. Step 2: Convert to fraction form
    31,090.03/42,902.99 = 16,942.57/x
  3. Step 3: Cross multiply
    31,090.03x = 42,902.99 × 16,942.57
  4. Step 4: Simplify right side
    31,090.03x = 726,886,740.49
  5. Step 5: Solve for x
    x = 726,886,740.49/31,090.03
  6. Step 6: Final answer
    x = 23,380.06

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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.