Home / 37,905.70-52,309.22-20,911.57

Finding the Fourth Proportional to 37,905.70, 52,309.22 and 20,911.57

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Solution

The fourth proportional to 37,905.70, 52,309.22 and 20,911.57 is: 28,857.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,905.70 : 52,309.22 = 20,911.57 : x
  2. Step 2: Convert to fraction form
    37,905.70/52,309.22 = 20,911.57/x
  3. Step 3: Cross multiply
    37,905.70x = 52,309.22 × 20,911.57
  4. Step 4: Simplify right side
    37,905.70x = 1,093,867,811.12
  5. Step 5: Solve for x
    x = 1,093,867,811.12/37,905.70
  6. Step 6: Final answer
    x = 28,857.61

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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.