Home / 39,753.36-54,859.28-21,603.96

Finding the Fourth Proportional to 39,753.36, 54,859.28 and 21,603.96

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Solution

The fourth proportional to 39,753.36, 54,859.28 and 21,603.96 is: 29,813.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,753.36 : 54,859.28 = 21,603.96 : x
  2. Step 2: Convert to fraction form
    39,753.36/54,859.28 = 21,603.96/x
  3. Step 3: Cross multiply
    39,753.36x = 54,859.28 × 21,603.96
  4. Step 4: Simplify right side
    39,753.36x = 1,185,177,582.73
  5. Step 5: Solve for x
    x = 1,185,177,582.73/39,753.36
  6. Step 6: Final answer
    x = 29,813.27

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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.