Home / 16,997.60-25,438.80-15,615.20

Finding the Fourth Proportional to 16,997.60, 25,438.80 and 15,615.20

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Solution

The fourth proportional to 16,997.60, 25,438.80 and 15,615.20 is: 23,369.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,997.60 : 25,438.80 = 15,615.20 : x
  2. Step 2: Convert to fraction form
    16,997.60/25,438.80 = 15,615.20/x
  3. Step 3: Cross multiply
    16,997.60x = 25,438.80 × 15,615.20
  4. Step 4: Simplify right side
    16,997.60x = 397,231,949.76
  5. Step 5: Solve for x
    x = 397,231,949.76/16,997.60
  6. Step 6: Final answer
    x = 23,369.88

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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.