Home / 17,220.12-25,828.02-6,821.88

Finding the Fourth Proportional to 17,220.12, 25,828.02 and 6,821.88

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Solution

The fourth proportional to 17,220.12, 25,828.02 and 6,821.88 is: 10,231.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,220.12 : 25,828.02 = 6,821.88 : x
  2. Step 2: Convert to fraction form
    17,220.12/25,828.02 = 6,821.88/x
  3. Step 3: Cross multiply
    17,220.12x = 25,828.02 × 6,821.88
  4. Step 4: Simplify right side
    17,220.12x = 176,195,653.08
  5. Step 5: Solve for x
    x = 176,195,653.08/17,220.12
  6. Step 6: Final answer
    x = 10,231.96

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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.