Home / 38,039.17-57,083.23-20,521.09

Finding the Fourth Proportional to 38,039.17, 57,083.23 and 20,521.09

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Solution

The fourth proportional to 38,039.17, 57,083.23 and 20,521.09 is: 30,794.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,039.17 : 57,083.23 = 20,521.09 : x
  2. Step 2: Convert to fraction form
    38,039.17/57,083.23 = 20,521.09/x
  3. Step 3: Cross multiply
    38,039.17x = 57,083.23 × 20,521.09
  4. Step 4: Simplify right side
    38,039.17x = 1,171,409,763.60
  5. Step 5: Solve for x
    x = 1,171,409,763.60/38,039.17
  6. Step 6: Final answer
    x = 30,794.83

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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.