Home / 31,153.92-42,992.16-17,006.64

Finding the Fourth Proportional to 31,153.92, 42,992.16 and 17,006.64

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Solution

The fourth proportional to 31,153.92, 42,992.16 and 17,006.64 is: 23,469.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,153.92 : 42,992.16 = 17,006.64 : x
  2. Step 2: Convert to fraction form
    31,153.92/42,992.16 = 17,006.64/x
  3. Step 3: Cross multiply
    31,153.92x = 42,992.16 × 17,006.64
  4. Step 4: Simplify right side
    31,153.92x = 731,152,187.94
  5. Step 5: Solve for x
    x = 731,152,187.94/31,153.92
  6. Step 6: Final answer
    x = 23,469.03

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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.