Home / 22,747.70-31,391.55-12,676.11

Finding the Fourth Proportional to 22,747.70, 31,391.55 and 12,676.11

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Solution

The fourth proportional to 22,747.70, 31,391.55 and 12,676.11 is: 17,492.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,747.70 : 31,391.55 = 12,676.11 : x
  2. Step 2: Convert to fraction form
    22,747.70/31,391.55 = 12,676.11/x
  3. Step 3: Cross multiply
    22,747.70x = 31,391.55 × 12,676.11
  4. Step 4: Simplify right side
    22,747.70x = 397,922,740.87
  5. Step 5: Solve for x
    x = 397,922,740.87/22,747.70
  6. Step 6: Final answer
    x = 17,492.88

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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.