Home / 39,205.97-54,104.28-21,300.97

Finding the Fourth Proportional to 39,205.97, 54,104.28 and 21,300.97

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Solution

The fourth proportional to 39,205.97, 54,104.28 and 21,300.97 is: 29,395.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,205.97 : 54,104.28 = 21,300.97 : x
  2. Step 2: Convert to fraction form
    39,205.97/54,104.28 = 21,300.97/x
  3. Step 3: Cross multiply
    39,205.97x = 54,104.28 × 21,300.97
  4. Step 4: Simplify right side
    39,205.97x = 1,152,473,645.15
  5. Step 5: Solve for x
    x = 1,152,473,645.15/39,205.97
  6. Step 6: Final answer
    x = 29,395.36

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1.5x scale

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.