Home / 38,676.33-53,371.30-21,908.25

Finding the Fourth Proportional to 38,676.33, 53,371.30 and 21,908.25

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Solution

The fourth proportional to 38,676.33, 53,371.30 and 21,908.25 is: 30,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,676.33 : 53,371.30 = 21,908.25 : x
  2. Step 2: Convert to fraction form
    38,676.33/53,371.30 = 21,908.25/x
  3. Step 3: Cross multiply
    38,676.33x = 53,371.30 × 21,908.25
  4. Step 4: Simplify right side
    38,676.33x = 1,169,271,783.23
  5. Step 5: Solve for x
    x = 1,169,271,783.23/38,676.33
  6. Step 6: Final answer
    x = 30,232.23

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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.