Home / 22,676.40-31,228.92-16,378.80

Finding the Fourth Proportional to 22,676.40, 31,228.92 and 16,378.80

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Solution

The fourth proportional to 22,676.40, 31,228.92 and 16,378.80 is: 22,556.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,676.40 : 31,228.92 = 16,378.80 : x
  2. Step 2: Convert to fraction form
    22,676.40/31,228.92 = 16,378.80/x
  3. Step 3: Cross multiply
    22,676.40x = 31,228.92 × 16,378.80
  4. Step 4: Simplify right side
    22,676.40x = 511,492,234.90
  5. Step 5: Solve for x
    x = 511,492,234.90/22,676.40
  6. Step 6: Final answer
    x = 22,556.15

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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.