Home / 38,129.05-52,619.79-21,133.27

Finding the Fourth Proportional to 38,129.05, 52,619.79 and 21,133.27

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Solution

The fourth proportional to 38,129.05, 52,619.79 and 21,133.27 is: 29,164.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,129.05 : 52,619.79 = 21,133.27 : x
  2. Step 2: Convert to fraction form
    38,129.05/52,619.79 = 21,133.27/x
  3. Step 3: Cross multiply
    38,129.05x = 52,619.79 × 21,133.27
  4. Step 4: Simplify right side
    38,129.05x = 1,112,028,229.41
  5. Step 5: Solve for x
    x = 1,112,028,229.41/38,129.05
  6. Step 6: Final answer
    x = 29,164.86

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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.