Home / 39,026.43-53,856.25-21,121.27

Finding the Fourth Proportional to 39,026.43, 53,856.25 and 21,121.27

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Solution

The fourth proportional to 39,026.43, 53,856.25 and 21,121.27 is: 29,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,026.43 : 53,856.25 = 21,121.27 : x
  2. Step 2: Convert to fraction form
    39,026.43/53,856.25 = 21,121.27/x
  3. Step 3: Cross multiply
    39,026.43x = 53,856.25 × 21,121.27
  4. Step 4: Simplify right side
    39,026.43x = 1,137,512,209.99
  5. Step 5: Solve for x
    x = 1,137,512,209.99/39,026.43
  6. Step 6: Final answer
    x = 29,147.23

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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.