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Finding the Fourth Proportional to 16,676.70, 25,015.05 and 15,315.90

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Solution

The fourth proportional to 16,676.70, 25,015.05 and 15,315.90 is: 22,973.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,676.70 : 25,015.05 = 15,315.90 : x
  2. Step 2: Convert to fraction form
    16,676.70/25,015.05 = 15,315.90/x
  3. Step 3: Cross multiply
    16,676.70x = 25,015.05 × 15,315.90
  4. Step 4: Simplify right side
    16,676.70x = 383,128,004.30
  5. Step 5: Solve for x
    x = 383,128,004.30/16,676.70
  6. Step 6: Final answer
    x = 22,973.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.