Home / 39,766.84-54,878.22-21,863

Finding the Fourth Proportional to 39,766.84, 54,878.22 and 21,863

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Solution

The fourth proportional to 39,766.84, 54,878.22 and 21,863 is: 30,170.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,766.84 : 54,878.22 = 21,863 : x
  2. Step 2: Convert to fraction form
    39,766.84/54,878.22 = 21,863/x
  3. Step 3: Cross multiply
    39,766.84x = 54,878.22 × 21,863
  4. Step 4: Simplify right side
    39,766.84x = 1,199,802,523.86
  5. Step 5: Solve for x
    x = 1,199,802,523.86/39,766.84
  6. Step 6: Final answer
    x = 30,170.93

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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.