Home / 17,321.10-25,981.65-12,072.30

Finding the Fourth Proportional to 17,321.10, 25,981.65 and 12,072.30

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Solution

The fourth proportional to 17,321.10, 25,981.65 and 12,072.30 is: 18,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,321.10 : 25,981.65 = 12,072.30 : x
  2. Step 2: Convert to fraction form
    17,321.10/25,981.65 = 12,072.30/x
  3. Step 3: Cross multiply
    17,321.10x = 25,981.65 × 12,072.30
  4. Step 4: Simplify right side
    17,321.10x = 313,658,273.30
  5. Step 5: Solve for x
    x = 313,658,273.30/17,321.10
  6. Step 6: Final answer
    x = 18,108.45

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Similar ratio
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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.