Home / 21,086.04-31,629.02-6,305.32

Finding the Fourth Proportional to 21,086.04, 31,629.02 and 6,305.32

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Solution

The fourth proportional to 21,086.04, 31,629.02 and 6,305.32 is: 9,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,086.04 : 31,629.02 = 6,305.32 : x
  2. Step 2: Convert to fraction form
    21,086.04/31,629.02 = 6,305.32/x
  3. Step 3: Cross multiply
    21,086.04x = 31,629.02 × 6,305.32
  4. Step 4: Simplify right side
    21,086.04x = 199,431,092.39
  5. Step 5: Solve for x
    x = 199,431,092.39/21,086.04
  6. Step 6: Final answer
    x = 9,457.97

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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.