Home / 39,757.76-54,865.92-21,852.16

Finding the Fourth Proportional to 39,757.76, 54,865.92 and 21,852.16

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Solution

The fourth proportional to 39,757.76, 54,865.92 and 21,852.16 is: 30,156.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,757.76 : 54,865.92 = 21,852.16 : x
  2. Step 2: Convert to fraction form
    39,757.76/54,865.92 = 21,852.16/x
  3. Step 3: Cross multiply
    39,757.76x = 54,865.92 × 21,852.16
  4. Step 4: Simplify right side
    39,757.76x = 1,198,938,862.39
  5. Step 5: Solve for x
    x = 1,198,938,862.39/39,757.76
  6. Step 6: Final answer
    x = 30,156.10

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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.