Home / 39,732.21-54,827.73-21,827.97

Finding the Fourth Proportional to 39,732.21, 54,827.73 and 21,827.97

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Solution

The fourth proportional to 39,732.21, 54,827.73 and 21,827.97 is: 30,121.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.21 : 54,827.73 = 21,827.97 : x
  2. Step 2: Convert to fraction form
    39,732.21/54,827.73 = 21,827.97/x
  3. Step 3: Cross multiply
    39,732.21x = 54,827.73 × 21,827.97
  4. Step 4: Simplify right side
    39,732.21x = 1,196,778,045.61
  5. Step 5: Solve for x
    x = 1,196,778,045.61/39,732.21
  6. Step 6: Final answer
    x = 30,121.10

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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.