Home / 38,721.25-53,441.81-21,963.97

Finding the Fourth Proportional to 38,721.25, 53,441.81 and 21,963.97

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Solution

The fourth proportional to 38,721.25, 53,441.81 and 21,963.97 is: 30,313.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,721.25 : 53,441.81 = 21,963.97 : x
  2. Step 2: Convert to fraction form
    38,721.25/53,441.81 = 21,963.97/x
  3. Step 3: Cross multiply
    38,721.25x = 53,441.81 × 21,963.97
  4. Step 4: Simplify right side
    38,721.25x = 1,173,794,311.59
  5. Step 5: Solve for x
    x = 1,173,794,311.59/38,721.25
  6. Step 6: Final answer
    x = 30,313.96

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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.