Home / 23,176.80-31,985.78-13,105.44

Finding the Fourth Proportional to 23,176.80, 31,985.78 and 13,105.44

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Solution

The fourth proportional to 23,176.80, 31,985.78 and 13,105.44 is: 18,086.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,176.80 : 31,985.78 = 13,105.44 : x
  2. Step 2: Convert to fraction form
    23,176.80/31,985.78 = 13,105.44/x
  3. Step 3: Cross multiply
    23,176.80x = 31,985.78 × 13,105.44
  4. Step 4: Simplify right side
    23,176.80x = 419,187,655.12
  5. Step 5: Solve for x
    x = 419,187,655.12/23,176.80
  6. Step 6: Final answer
    x = 18,086.52

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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.