Home / 38,857.81-58,161.39-20,112.06

Finding the Fourth Proportional to 38,857.81, 58,161.39 and 20,112.06

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Solution

The fourth proportional to 38,857.81, 58,161.39 and 20,112.06 is: 30,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,857.81 : 58,161.39 = 20,112.06 : x
  2. Step 2: Convert to fraction form
    38,857.81/58,161.39 = 20,112.06/x
  3. Step 3: Cross multiply
    38,857.81x = 58,161.39 × 20,112.06
  4. Step 4: Simplify right side
    38,857.81x = 1,169,745,365.36
  5. Step 5: Solve for x
    x = 1,169,745,365.36/38,857.81
  6. Step 6: Final answer
    x = 30,103.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.