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Finding the Fourth Proportional to 21,797.30, 32,712.46 and 8,650.80

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Solution

The fourth proportional to 21,797.30, 32,712.46 and 8,650.80 is: 12,982.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.30 : 32,712.46 = 8,650.80 : x
  2. Step 2: Convert to fraction form
    21,797.30/32,712.46 = 8,650.80/x
  3. Step 3: Cross multiply
    21,797.30x = 32,712.46 × 8,650.80
  4. Step 4: Simplify right side
    21,797.30x = 282,988,927.34
  5. Step 5: Solve for x
    x = 282,988,927.34/21,797.30
  6. Step 6: Final answer
    x = 12,982.75

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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.