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Finding the Fourth Proportional to 16,620.30, 24,930.45 and 15,964.20

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Solution

The fourth proportional to 16,620.30, 24,930.45 and 15,964.20 is: 23,946.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.30 : 24,930.45 = 15,964.20 : x
  2. Step 2: Convert to fraction form
    16,620.30/24,930.45 = 15,964.20/x
  3. Step 3: Cross multiply
    16,620.30x = 24,930.45 × 15,964.20
  4. Step 4: Simplify right side
    16,620.30x = 397,994,689.89
  5. Step 5: Solve for x
    x = 397,994,689.89/16,620.30
  6. Step 6: Final answer
    x = 23,946.30

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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.