Home / 22,540.52-31,105.64-12,469.70

Finding the Fourth Proportional to 22,540.52, 31,105.64 and 12,469.70

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Solution

The fourth proportional to 22,540.52, 31,105.64 and 12,469.70 is: 17,208.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,540.52 : 31,105.64 = 12,469.70 : x
  2. Step 2: Convert to fraction form
    22,540.52/31,105.64 = 12,469.70/x
  3. Step 3: Cross multiply
    22,540.52x = 31,105.64 × 12,469.70
  4. Step 4: Simplify right side
    22,540.52x = 387,877,999.11
  5. Step 5: Solve for x
    x = 387,877,999.11/22,540.52
  6. Step 6: Final answer
    x = 17,208.03

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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.