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Finding the Fourth Proportional to 19,829.80, 29,744.70 and 16,622.20

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Solution

The fourth proportional to 19,829.80, 29,744.70 and 16,622.20 is: 24,933.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,829.80 : 29,744.70 = 16,622.20 : x
  2. Step 2: Convert to fraction form
    19,829.80/29,744.70 = 16,622.20/x
  3. Step 3: Cross multiply
    19,829.80x = 29,744.70 × 16,622.20
  4. Step 4: Simplify right side
    19,829.80x = 494,422,352.34
  5. Step 5: Solve for x
    x = 494,422,352.34/19,829.80
  6. Step 6: Final answer
    x = 24,933.30

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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.