Home / 39,748.48-54,853.67-21,842.41

Finding the Fourth Proportional to 39,748.48, 54,853.67 and 21,842.41

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Solution

The fourth proportional to 39,748.48, 54,853.67 and 21,842.41 is: 30,142.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,748.48 : 54,853.67 = 21,842.41 : x
  2. Step 2: Convert to fraction form
    39,748.48/54,853.67 = 21,842.41/x
  3. Step 3: Cross multiply
    39,748.48x = 54,853.67 × 21,842.41
  4. Step 4: Simplify right side
    39,748.48x = 1,198,136,350.14
  5. Step 5: Solve for x
    x = 1,198,136,350.14/39,748.48
  6. Step 6: Final answer
    x = 30,142.95

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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.