Home / 39,702.51-54,788.45-21,797.37

Finding the Fourth Proportional to 39,702.51, 54,788.45 and 21,797.37

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Solution

The fourth proportional to 39,702.51, 54,788.45 and 21,797.37 is: 30,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,702.51 : 54,788.45 = 21,797.37 : x
  2. Step 2: Convert to fraction form
    39,702.51/54,788.45 = 21,797.37/x
  3. Step 3: Cross multiply
    39,702.51x = 54,788.45 × 21,797.37
  4. Step 4: Simplify right side
    39,702.51x = 1,194,244,007.39
  5. Step 5: Solve for x
    x = 1,194,244,007.39/39,702.51
  6. Step 6: Final answer
    x = 30,079.81

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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.