Home / 21,753.57-30,022.04-12,195.08

Finding the Fourth Proportional to 21,753.57, 30,022.04 and 12,195.08

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Solution

The fourth proportional to 21,753.57, 30,022.04 and 12,195.08 is: 16,830.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,753.57 : 30,022.04 = 12,195.08 : x
  2. Step 2: Convert to fraction form
    21,753.57/30,022.04 = 12,195.08/x
  3. Step 3: Cross multiply
    21,753.57x = 30,022.04 × 12,195.08
  4. Step 4: Simplify right side
    21,753.57x = 366,121,179.56
  5. Step 5: Solve for x
    x = 366,121,179.56/21,753.57
  6. Step 6: Final answer
    x = 16,830.40

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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.