Home / 39,893.43-55,050.78-21,984.87

Finding the Fourth Proportional to 39,893.43, 55,050.78 and 21,984.87

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Solution

The fourth proportional to 39,893.43, 55,050.78 and 21,984.87 is: 30,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,893.43 : 55,050.78 = 21,984.87 : x
  2. Step 2: Convert to fraction form
    39,893.43/55,050.78 = 21,984.87/x
  3. Step 3: Cross multiply
    39,893.43x = 55,050.78 × 21,984.87
  4. Step 4: Simplify right side
    39,893.43x = 1,210,284,241.70
  5. Step 5: Solve for x
    x = 1,210,284,241.70/39,893.43
  6. Step 6: Final answer
    x = 30,337.93

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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.