Home / 38,510.33-53,138.26-21,742.97

Finding the Fourth Proportional to 38,510.33, 53,138.26 and 21,742.97

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Solution

The fourth proportional to 38,510.33, 53,138.26 and 21,742.97 is: 30,001.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,510.33 : 53,138.26 = 21,742.97 : x
  2. Step 2: Convert to fraction form
    38,510.33/53,138.26 = 21,742.97/x
  3. Step 3: Cross multiply
    38,510.33x = 53,138.26 × 21,742.97
  4. Step 4: Simplify right side
    38,510.33x = 1,155,383,593.03
  5. Step 5: Solve for x
    x = 1,155,383,593.03/38,510.33
  6. Step 6: Final answer
    x = 30,001.91

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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.