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Finding the Fourth Proportional to 16,998.60, 25,440.30 and 15,616.20

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Solution

The fourth proportional to 16,998.60, 25,440.30 and 15,616.20 is: 23,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,998.60 : 25,440.30 = 15,616.20 : x
  2. Step 2: Convert to fraction form
    16,998.60/25,440.30 = 15,616.20/x
  3. Step 3: Cross multiply
    16,998.60x = 25,440.30 × 15,616.20
  4. Step 4: Simplify right side
    16,998.60x = 397,280,812.86
  5. Step 5: Solve for x
    x = 397,280,812.86/16,998.60
  6. Step 6: Final answer
    x = 23,371.38

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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.