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Finding the Fourth Proportional to 21,704.35, 29,952.23 and 12,752.23

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Solution

The fourth proportional to 21,704.35, 29,952.23 and 12,752.23 is: 17,598.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.35 : 29,952.23 = 12,752.23 : x
  2. Step 2: Convert to fraction form
    21,704.35/29,952.23 = 12,752.23/x
  3. Step 3: Cross multiply
    21,704.35x = 29,952.23 × 12,752.23
  4. Step 4: Simplify right side
    21,704.35x = 381,957,725.97
  5. Step 5: Solve for x
    x = 381,957,725.97/21,704.35
  6. Step 6: Final answer
    x = 17,598.21

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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.