Home / 21,797.10-32,728.05-16,872.30

Finding the Fourth Proportional to 21,797.10, 32,728.05 and 16,872.30

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Solution

The fourth proportional to 21,797.10, 32,728.05 and 16,872.30 is: 25,333.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.10 : 32,728.05 = 16,872.30 : x
  2. Step 2: Convert to fraction form
    21,797.10/32,728.05 = 16,872.30/x
  3. Step 3: Cross multiply
    21,797.10x = 32,728.05 × 16,872.30
  4. Step 4: Simplify right side
    21,797.10x = 552,197,478.02
  5. Step 5: Solve for x
    x = 552,197,478.02/21,797.10
  6. Step 6: Final answer
    x = 25,333.53

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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.