Home / 23,123.22-31,910.13-12,512.85

Finding the Fourth Proportional to 23,123.22, 31,910.13 and 12,512.85

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Solution

The fourth proportional to 23,123.22, 31,910.13 and 12,512.85 is: 17,267.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,123.22 : 31,910.13 = 12,512.85 : x
  2. Step 2: Convert to fraction form
    23,123.22/31,910.13 = 12,512.85/x
  3. Step 3: Cross multiply
    23,123.22x = 31,910.13 × 12,512.85
  4. Step 4: Simplify right side
    23,123.22x = 399,286,670.17
  5. Step 5: Solve for x
    x = 399,286,670.17/23,123.22
  6. Step 6: Final answer
    x = 17,267.78

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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.