Home / 38,015.87-57,035.27-20,243.45

Finding the Fourth Proportional to 38,015.87, 57,035.27 and 20,243.45

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Solution

The fourth proportional to 38,015.87, 57,035.27 and 20,243.45 is: 30,371.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,015.87 : 57,035.27 = 20,243.45 : x
  2. Step 2: Convert to fraction form
    38,015.87/57,035.27 = 20,243.45/x
  3. Step 3: Cross multiply
    38,015.87x = 57,035.27 × 20,243.45
  4. Step 4: Simplify right side
    38,015.87x = 1,154,590,829.68
  5. Step 5: Solve for x
    x = 1,154,590,829.68/38,015.87
  6. Step 6: Final answer
    x = 30,371.29

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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.