Home / 39,691.09-54,773.53-21,541.83

Finding the Fourth Proportional to 39,691.09, 54,773.53 and 21,541.83

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Solution

The fourth proportional to 39,691.09, 54,773.53 and 21,541.83 is: 29,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,691.09 : 54,773.53 = 21,541.83 : x
  2. Step 2: Convert to fraction form
    39,691.09/54,773.53 = 21,541.83/x
  3. Step 3: Cross multiply
    39,691.09x = 54,773.53 × 21,541.83
  4. Step 4: Simplify right side
    39,691.09x = 1,179,922,071.76
  5. Step 5: Solve for x
    x = 1,179,922,071.76/39,691.09
  6. Step 6: Final answer
    x = 29,727.63

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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.