Home / 23,123.35-31,910.07-12,512.89

Finding the Fourth Proportional to 23,123.35, 31,910.07 and 12,512.89

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Solution

The fourth proportional to 23,123.35, 31,910.07 and 12,512.89 is: 17,267.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,123.35 : 31,910.07 = 12,512.89 : x
  2. Step 2: Convert to fraction form
    23,123.35/31,910.07 = 12,512.89/x
  3. Step 3: Cross multiply
    23,123.35x = 31,910.07 × 12,512.89
  4. Step 4: Simplify right side
    23,123.35x = 399,287,195.80
  5. Step 5: Solve for x
    x = 399,287,195.80/23,123.35
  6. Step 6: Final answer
    x = 17,267.71

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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.