Home / 28,133.33-38,822.42-15,383.97

Finding the Fourth Proportional to 28,133.33, 38,822.42 and 15,383.97

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Solution

The fourth proportional to 28,133.33, 38,822.42 and 15,383.97 is: 21,229.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.33 : 38,822.42 = 15,383.97 : x
  2. Step 2: Convert to fraction form
    28,133.33/38,822.42 = 15,383.97/x
  3. Step 3: Cross multiply
    28,133.33x = 38,822.42 × 15,383.97
  4. Step 4: Simplify right side
    28,133.33x = 597,242,983.07
  5. Step 5: Solve for x
    x = 597,242,983.07/28,133.33
  6. Step 6: Final answer
    x = 21,229.02

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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.