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Finding the Fourth Proportional to 21,504.50, 32,262.90 and 10,965.90

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Solution

The fourth proportional to 21,504.50, 32,262.90 and 10,965.90 is: 16,451.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,504.50 : 32,262.90 = 10,965.90 : x
  2. Step 2: Convert to fraction form
    21,504.50/32,262.90 = 10,965.90/x
  3. Step 3: Cross multiply
    21,504.50x = 32,262.90 × 10,965.90
  4. Step 4: Simplify right side
    21,504.50x = 353,791,735.11
  5. Step 5: Solve for x
    x = 353,791,735.11/21,504.50
  6. Step 6: Final answer
    x = 16,451.99

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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.