Home / 39,893.18-55,052.97-21,988.87

Finding the Fourth Proportional to 39,893.18, 55,052.97 and 21,988.87

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Solution

The fourth proportional to 39,893.18, 55,052.97 and 21,988.87 is: 30,344.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.18 : 55,052.97 = 21,988.87 : x
  2. Step 2: Convert to fraction form
    39,893.18/55,052.97 = 21,988.87/x
  3. Step 3: Cross multiply
    39,893.18x = 55,052.97 × 21,988.87
  4. Step 4: Simplify right side
    39,893.18x = 1,210,552,600.44
  5. Step 5: Solve for x
    x = 1,210,552,600.44/39,893.18
  6. Step 6: Final answer
    x = 30,344.85

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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.