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Finding the Fourth Proportional to 21,704, 29,953.02 and 12,272.60

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Solution

The fourth proportional to 21,704, 29,953.02 and 12,272.60 is: 16,937.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704 : 29,953.02 = 12,272.60 : x
  2. Step 2: Convert to fraction form
    21,704/29,953.02 = 12,272.60/x
  3. Step 3: Cross multiply
    21,704x = 29,953.02 × 12,272.60
  4. Step 4: Simplify right side
    21,704x = 367,601,433.25
  5. Step 5: Solve for x
    x = 367,601,433.25/21,704
  6. Step 6: Final answer
    x = 16,937.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.