Home / 21,276.35-31,914.06-5,693.97

Finding the Fourth Proportional to 21,276.35, 31,914.06 and 5,693.97

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Solution

The fourth proportional to 21,276.35, 31,914.06 and 5,693.97 is: 8,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.35 : 31,914.06 = 5,693.97 : x
  2. Step 2: Convert to fraction form
    21,276.35/31,914.06 = 5,693.97/x
  3. Step 3: Cross multiply
    21,276.35x = 31,914.06 × 5,693.97
  4. Step 4: Simplify right side
    21,276.35x = 181,717,700.22
  5. Step 5: Solve for x
    x = 181,717,700.22/21,276.35
  6. Step 6: Final answer
    x = 8,540.83

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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.